231311022210222 has 16 divisors (see below), whose sum is σ = 462841192737792. Its totient is φ = 77067149350520.

The previous prime is 231311022210221. The next prime is 231311022210319. The reversal of 231311022210222 is 222012220113132.

It is a super-2 number, since 2×231311022210222² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231311022210192 and 231311022210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231311022210221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9131166168 + ... + 9131191499.

It is an arithmetic number, because the mean of its divisors is an integer number (28927574546112).

Almost surely, 2^{231311022210222} is an apocalyptic number.

231311022210222 is an abundant number, since it is smaller than the sum of its proper divisors (231530170527570).

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

231311022210222 is a wasteful number, since it uses less digits than its factorization.

231311022210222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18262359783.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 231311022210222 its reverse (222012220113132), we get a palindrome (453323242323354).

The spelling of 231311022210222 in words is "two hundred thirty-one trillion, three hundred eleven billion, twenty-two million, two hundred ten thousand, two hundred twenty-two".