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120021212001222 = 232743110392127133
BaseRepresentation
bin11011010010100010011101…
…101101001111001111000110
3120201221220201121220100022100
4123102202131231033033012
5111212411420233014342
61103132552243412530
734165150343212260
oct3322423555171706
9521856647810270
10120021212001222
113527378a256734
1211564ab9084146
1351c7c4ac3b49c
14218d0b42cab30
15dd20619cce4c
hex6d289db4f3c6

120021212001222 has 96 divisors (see below), whose sum is σ = 298171774218240. Its totient is φ = 34179267487680.

The previous prime is 120021212001217. The next prime is 120021212001253. The reversal of 120021212001222 is 222100212120021.

It is a happy number.

120021212001222 is a `hidden beast` number, since 1 + 200 + 21 + 21 + 200 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120021212001195 and 120021212001204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55360368 + ... + 57487500.

It is an arithmetic number, because the mean of its divisors is an integer number (3105955981440).

Almost surely, 2120021212001222 is an apocalyptic number.

120021212001222 is an abundant number, since it is smaller than the sum of its proper divisors (178150562217018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120021212001222 is a wasteful number, since it uses less digits than its factorization.

120021212001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128618 (or 2128615 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120021212001222 its reverse (222100212120021), we get a palindrome (342121424121243).

The spelling of 120021212001222 in words is "one hundred twenty trillion, twenty-one billion, two hundred twelve million, one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 431 862 1039 1293 2078 2586 3017 3117 3879 6034 6234 7273 7758 9051 9351 14546 18102 18702 21819 27153 43638 54306 65457 130914 447809 895618 1343427 2127133 2686854 3134663 4030281 4254266 6269326 6381399 8060562 9403989 12762798 14889931 18807978 19144197 28211967 29779862 38288394 44669793 56423934 89339586 134009379 268018758 916794323 1833588646 2210091187 2750382969 4420182374 5500765938 6417560261 6630273561 8251148907 12835120522 13260547122 15470638309 16502297814 19252680783 19890820683 30941276618 38505361566 39781641366 46411914927 57758042349 92823829854 115516084698 139235744781 278471489562 952549301597 1905098603194 2857647904791 5715295809582 6667845111179 8572943714373 13335690222358 17145887428746 20003535333537 40007070667074 60010606000611 120021212001222