122001323121 has 16 divisors (see below), whose sum is σ = 184152942720. Its totient is φ = 79799606640.

The previous prime is 122001323099. The next prime is 122001323141. The reversal of 122001323121 is 121323100221.

122001323121 is a `hidden beast` number, since 1 + 220 + 0 + 1 + 323 + 121 = 666.

It is not a de Polignac number, because 122001323121 - 2¹⁰ = 122001322097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122001323094 and 122001323103.

It is not an unprimeable number, because it can be changed into a prime (122001323141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42626565 + ... + 42629426.

It is an arithmetic number, because the mean of its divisors is an integer number (11509558920).

Almost surely, 2^122001323121 is an apocalyptic number.

It is an amenable number.

122001323121 is a deficient number, since it is larger than the sum of its proper divisors (62151619599).

122001323121 is an equidigital number, since it uses as much as digits as its factorization.

122001323121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85256053 (or 85256047 counting only the distinct ones).

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

Adding to 122001323121 its reverse (121323100221), we get a palindrome (243324423342).

The spelling of 122001323121 in words is "one hundred twenty-two billion, one million, three hundred twenty-three thousand, one hundred twenty-one".