122032311021 has 10 divisors (see below), whose sum is σ = 182295180782. Its totient is φ = 81354873960.

The previous prime is 122032310999. The next prime is 122032311041. The reversal of 122032311021 is 120113230221.

It can be written as a sum of positive squares in only one way, i.e., 92701980900 + 29330330121 = 304470^2 + 171261^2 .

It is not a de Polignac number, because 122032311021 - 2⁶ = 122032310957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122032310985 and 122032311003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122032311041) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 753285790 + ... + 753285951.

Almost surely, 2^122032311021 is an apocalyptic number.

It is an amenable number.

122032311021 is a deficient number, since it is larger than the sum of its proper divisors (60262869761).

122032311021 is an equidigital number, since it uses as much as digits as its factorization.

122032311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506571753 (or 1506571744 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 122032311021 its reverse (120113230221), we get a palindrome (242145541242).

The spelling of 122032311021 in words is "one hundred twenty-two billion, thirty-two million, three hundred eleven thousand, twenty-one".