122231110012981 has 2 divisors, whose sum is σ = 122231110012982. Its totient is φ = 122231110012980.

The previous prime is 122231110012903. The next prime is 122231110013039. The reversal of 122231110012981 is 189210011132221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95148807080625 + 27082302932356 = 9754425^2 + 5204066^2 .

It is an emirp because it is prime and its reverse (189210011132221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122231110012981 - 2⁷ = 122231110012853 is a prime.

It is a super-2 number, since 2×122231110012981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122231110013981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61115555006490 + 61115555006491.

It is an arithmetic number, because the mean of its divisors is an integer number (61115555006491).

Almost surely, 2^{122231110012981} is an apocalyptic number.

It is an amenable number.

122231110012981 is a deficient number, since it is larger than the sum of its proper divisors (1).

122231110012981 is an equidigital number, since it uses as much as digits as its factorization.

122231110012981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 122231110012981 in words is "one hundred twenty-two trillion, two hundred thirty-one billion, one hundred ten million, twelve thousand, nine hundred eighty-one".