122011322989 has 2 divisors, whose sum is σ = 122011322990. Its totient is φ = 122011322988.

The previous prime is 122011322969. The next prime is 122011323017. The reversal of 122011322989 is 989223110221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96151466889 + 25859856100 = 310083^2 + 160810^2 .

It is a cyclic number.

It is not a de Polignac number, because 122011322989 - 2⁷ = 122011322861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122011322959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005661494 + 61005661495.

It is an arithmetic number, because the mean of its divisors is an integer number (61005661495).

Almost surely, 2^122011322989 is an apocalyptic number.

It is an amenable number.

122011322989 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011322989 is an equidigital number, since it uses as much as digits as its factorization.

122011322989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 122011322989 in words is "one hundred twenty-two billion, eleven million, three hundred twenty-two thousand, nine hundred eighty-nine".