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221201431022 = 2111347163100957
BaseRepresentation
bin1100111000000010100…
…0011111100111101110
3210010221220111222021102
43032000220133213232
512111010031243042
6245341334203102
721660402066155
oct3160050374756
9703856458242
10221201431022
11858a1494120
1236a53ab3492
1317b2289c730
14a9c5b8a59c
155b4990eb32
hex3380a1f9ee

221201431022 has 64 divisors (see below), whose sum is σ = 400549653504. Its totient is φ = 90278893440.

The previous prime is 221201430991. The next prime is 221201431051. The reversal of 221201431022 is 220134102122.

It is a junction number, because it is equal to n+sod(n) for n = 221201430985 and 221201431003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2140568 + ... + 2241524.

It is an arithmetic number, because the mean of its divisors is an integer number (6258588336).

Almost surely, 2221201431022 is an apocalyptic number.

221201431022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221201431022 is a deficient number, since it is larger than the sum of its proper divisors (179348222482).

221201431022 is a wasteful number, since it uses less digits than its factorization.

221201431022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101193.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221201431022 its reverse (220134102122), we get a palindrome (441335533144).

Subtracting from 221201431022 its reverse (220134102122), we obtain a square (1067328900 = 326702).

The spelling of 221201431022 in words is "two hundred twenty-one billion, two hundred one million, four hundred thirty-one thousand, twenty-two".

Divisors: 1 2 11 13 22 26 47 94 143 163 286 326 517 611 1034 1222 1793 2119 3586 4238 6721 7661 13442 15322 23309 46618 84271 99593 100957 168542 199186 201914 1095523 1110527 1312441 2191046 2221054 2624882 4744979 9489958 14436851 16455991 28873702 32911982 52194769 61684727 104389538 123369454 181015901 213927883 362031802 427855766 678531997 773431577 1357063994 1546863154 2353206713 4706413426 8507747347 10054610501 17015494694 20109221002 110600715511 221201431022