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122111220013013 = 71131206324797273
BaseRepresentation
bin11011110000111100111011…
…111001000101011111010101
3121000100201101212200221111202
4123300330323321011133111
5112001132234310404023
61111413041532442245
734502146603203020
oct3360747371053725
9530321355627452
10122111220013013
11359aa09429aa20
1211841b80619385
13531a066b6b71a
142222300b621b7
15e1b5d68bb128
hex6f0f3be457d5

122111220013013 has 32 divisors (see below), whose sum is σ = 157229793902592. Its totient is φ = 92037554755200.

The previous prime is 122111220012983. The next prime is 122111220013039. The reversal of 122111220013013 is 310310022111221.

It is not a de Polignac number, because 122111220013013 - 28 = 122111220012757 is a prime.

It is a super-2 number, since 2×1221112200130132 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111220013043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7474256 + ... + 17323017.

It is an arithmetic number, because the mean of its divisors is an integer number (4913431059456).

Almost surely, 2122111220013013 is an apocalyptic number.

It is an amenable number.

122111220013013 is a deficient number, since it is larger than the sum of its proper divisors (35118573889579).

122111220013013 is a wasteful number, since it uses less digits than its factorization.

122111220013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24799385.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 122111220013013 its reverse (310310022111221), we get a palindrome (432421242124234).

The spelling of 122111220013013 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred twenty million, thirteen thousand, thirteen".

Divisors: 1 7 11 31 77 217 341 2063 2387 14441 22693 63953 158851 447671 703483 4924381 24797273 173580911 272770003 768715463 1909390021 5381008241 8455870093 51156774199 59191090651 358097419393 562724516189 1585860000169 3939071613323 11101020001183 17444460001859 122111220013013