122113140021 has 12 divisors (see below), whose sum is σ = 176470352448. Its totient is φ = 81369665064.

The previous prime is 122113140013. The next prime is 122113140059. The reversal of 122113140021 is 120041311221.

122113140021 is a `hidden beast` number, since 1 + 2 + 211 + 31 + 400 + 21 = 666.

It is not a de Polignac number, because 122113140021 - 2³ = 122113140013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122113139976 and 122113140003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122113147021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3238125 + ... + 3275618.

It is an arithmetic number, because the mean of its divisors is an integer number (14705862704).

Almost surely, 2^122113140021 is an apocalyptic number.

It is an amenable number.

122113140021 is a deficient number, since it is larger than the sum of its proper divisors (54357212427).

122113140021 is a wasteful number, since it uses less digits than its factorization.

122113140021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6515832 (or 6515829 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 122113140021 its reverse (120041311221), we get a palindrome (242154451242).

The spelling of 122113140021 in words is "one hundred twenty-two billion, one hundred thirteen million, one hundred forty thousand, twenty-one".