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122021112210020 = 22522115927586739
BaseRepresentation
bin11011101111101001000001…
…000011000110001001100100
3121000001002211002222021110222
4123233221001003012021210
5111443143214211210040
61111303420341503512
734462506624415022
oct3357510103061144
9530032732867428
10122021112210020
1135974954838951
1211828613711b98
1353117069030ba
14221bbd3801712
15e190b0d47bb5
hex6efa410c6264

122021112210020 has 24 divisors (see below), whose sum is σ = 256245503572800. Its totient is φ = 48808222420832.

The previous prime is 122021112210001. The next prime is 122021112210073. The reversal of 122021112210020 is 20012211120221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9370190 + ... + 18216549.

It is an arithmetic number, because the mean of its divisors is an integer number (10676895982200).

Almost surely, 2122021112210020 is an apocalyptic number.

122021112210020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021112210020 is an abundant number, since it is smaller than the sum of its proper divisors (134224391362780).

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

122021112210020 is a wasteful number, since it uses less digits than its factorization.

122021112210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27807907 (or 27807905 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122021112210020 its reverse (20012211120221), we get a palindrome (142033323330241).

The spelling of 122021112210020 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred twelve million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 221159 442318 884636 1105795 2211590 4423180 27586739 55173478 110346956 137933695 275867390 551734780 6101055610501 12202111221002 24404222442004 30505278052505 61010556105010 122021112210020