231201110212122 has 16 divisors (see below), whose sum is σ = 462402421938720. Its totient is φ = 77067003151632.

The previous prime is 231201110212117. The next prime is 231201110212123. The reversal of 231201110212122 is 221212011102132.

It is not an unprimeable number, because it can be changed into a prime (231201110212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9430029 + ... + 23480367.

It is an arithmetic number, because the mean of its divisors is an integer number (28900151371170).

Almost surely, 2^{231201110212122} is an apocalyptic number.

231201110212122 is an abundant number, since it is smaller than the sum of its proper divisors (231201311726598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231201110212122 is a wasteful number, since it uses less digits than its factorization.

231201110212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16792877.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 231201110212122 its reverse (221212011102132), we get a palindrome (452413121314254).

The spelling of 231201110212122 in words is "two hundred thirty-one trillion, two hundred one billion, one hundred ten million, two hundred twelve thousand, one hundred twenty-two".