122231312243131 has 64 divisors (see below), whose sum is σ = 154740774988800. Its totient is φ = 93969534951936.

The previous prime is 122231312243129. The next prime is 122231312243137. The reversal of 122231312243131 is 131342213132221.

It is not a de Polignac number, because 122231312243131 - 2¹ = 122231312243129 is a prime.

It is a super-2 number, since 2×122231312243131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122231312243093 and 122231312243102.

It is not an unprimeable number, because it can be changed into a prime (122231312243137) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 576791565 + ... + 577003441.

It is an arithmetic number, because the mean of its divisors is an integer number (2417824609200).

Almost surely, 2^{122231312243131} is an apocalyptic number.

122231312243131 is a deficient number, since it is larger than the sum of its proper divisors (32509462745669).

122231312243131 is a wasteful number, since it uses less digits than its factorization.

122231312243131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212708.

The product of its digits is 10368, while the sum is 31.

Adding to 122231312243131 its reverse (131342213132221), we get a palindrome (253573525375352).

The spelling of 122231312243131 in words is "one hundred twenty-two trillion, two hundred thirty-one billion, three hundred twelve million, two hundred forty-three thousand, one hundred thirty-one".