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122220211310331 = 31103152333197307
BaseRepresentation
bin11011110010100010011100…
…010001111000111011111011
3121000202010201200001111221020
4123302202130101320323323
5112004423443043412311
61111535105010313523
734513055526015231
oct3362423421707373
9530663650044836
10122220211310331
1135a41334012852
121185b1195888a3
1353274163a2224
1422276bddb0951
15e1e365163c06
hex6f289c478efb

122220211310331 has 32 divisors (see below), whose sum is σ = 163286640599040. Its totient is φ = 81317176790304.

The previous prime is 122220211310303. The next prime is 122220211310339. The reversal of 122220211310331 is 133013112022221.

It is not a de Polignac number, because 122220211310331 - 25 = 122220211310299 is a prime.

It is a super-2 number, since 2×1222202113103312 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122220211310339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16726451980 + ... + 16726459286.

It is an arithmetic number, because the mean of its divisors is an integer number (5102707518720).

Almost surely, 2122220211310331 is an apocalyptic number.

122220211310331 is a deficient number, since it is larger than the sum of its proper divisors (41066429288709).

122220211310331 is a wasteful number, since it uses less digits than its factorization.

122220211310331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13255.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 122220211310331 its reverse (133013112022221), we get a palindrome (255233323332552).

The spelling of 122220211310331 in words is "one hundred twenty-two trillion, two hundred twenty billion, two hundred eleven million, three hundred ten thousand, three hundred thirty-one".

Divisors: 1 3 1103 1523 3309 3319 4569 7307 9957 21921 1679869 3660857 5039607 5054837 8059621 10982571 11128561 15164511 24178863 24251933 33385683 72755799 5575485211 12274802783 16726455633 26749882099 36824408349 36935693959 80249646297 110807081877 40740070436777 122220211310331