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131011013212222 = 21121399017420571
BaseRepresentation
bin11101110010011101100000…
…111001110111100000111110
3122011212112022202201212020211
4131302131200321313200332
5114132441023340242342
61142345343435503034
736411143016212113
oct3562354071674076
9564775282655224
10131011013212222
1138820505565500
121283a98b2b7a7a
135814393423040
14244cd7715490a
151022d6cb0dc17
hex772760e7783e

131011013212222 has 48 divisors (see below), whose sum is σ = 232624491681456. Its totient is φ = 54968970038400.

The previous prime is 131011013212153. The next prime is 131011013212259. The reversal of 131011013212222 is 222212310110131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 131011013212193 and 131011013212202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311297197 + ... + 311717767.

It is an arithmetic number, because the mean of its divisors is an integer number (4846343576697).

Almost surely, 2131011013212222 is an apocalyptic number.

131011013212222 is a deficient number, since it is larger than the sum of its proper divisors (101613478469234).

131011013212222 is a wasteful number, since it uses less digits than its factorization.

131011013212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519625 (or 519614 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131011013212222 its reverse (222212310110131), we get a palindrome (353223323322353).

The spelling of 131011013212222 in words is "one hundred thirty-one trillion, eleven billion, thirteen million, two hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 11 13 22 26 121 143 242 286 1573 3146 99017 198034 420571 841142 1089187 1287221 2178374 2574442 4626281 5467423 9252562 10934846 11981057 14159431 23962114 28318862 50889091 60141653 101778182 120283306 155753741 311507482 661558183 1323116366 41643678707 83287357414 458080465777 541367823191 916160931554 1082735646382 5038885123547 5955046055101 10077770247094 11910092110202 65505506606111 131011013212222