122331015881 has 2 divisors, whose sum is σ = 122331015882. Its totient is φ = 122331015880.

The previous prime is 122331015869. The next prime is 122331015913. The reversal of 122331015881 is 188510133221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78559681225 + 43771334656 = 280285^2 + 209216^2 .

It is a cyclic number.

It is not a de Polignac number, because 122331015881 - 2¹⁰ = 122331014857 is a prime.

It is a super-2 number, since 2×122331015881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122331015841) 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, 61165507940 + 61165507941.

It is an arithmetic number, because the mean of its divisors is an integer number (61165507941).

Almost surely, 2^122331015881 is an apocalyptic number.

It is an amenable number.

122331015881 is a deficient number, since it is larger than the sum of its proper divisors (1).

122331015881 is an equidigital number, since it uses as much as digits as its factorization.

122331015881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 122331015881 in words is "one hundred twenty-two billion, three hundred thirty-one million, fifteen thousand, eight hundred eighty-one".