231022121102001 has 24 divisors (see below), whose sum is σ = 335170653692160. Its totient is φ = 153335355029856.

The previous prime is 231022121101979. The next prime is 231022121102009. The reversal of 231022121102001 is 100201121220132.

231022121102001 is a `hidden beast` number, since 2 + 31 + 0 + 221 + 211 + 0 + 200 + 1 = 666.

231022121102001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231022121102001 - 2²¹ = 231022119004849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231022121102009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 650638551 + ... + 650993523.

It is an arithmetic number, because the mean of its divisors is an integer number (13965443903840).

Almost surely, 2^{231022121102001} is an apocalyptic number.

It is an amenable number.

231022121102001 is a deficient number, since it is larger than the sum of its proper divisors (104148532590159).

231022121102001 is a wasteful number, since it uses less digits than its factorization.

231022121102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673765 (or 673762 counting only the distinct ones).

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

Adding to 231022121102001 its reverse (100201121220132), we get a palindrome (331223242322133).

The spelling of 231022121102001 in words is "two hundred thirty-one trillion, twenty-two billion, one hundred twenty-one million, one hundred two thousand, one".