231222222132 has 48 divisors (see below), whose sum is σ = 594393073344. Its totient is φ = 69373600000.

The previous prime is 231222222107. The next prime is 231222222137.

231222222132 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231222222137) 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, 8658369 + ... + 8685032.

It is an arithmetic number, because the mean of its divisors is an integer number (12383189028).

Almost surely, 2^231222222132 is an apocalyptic number.

231222222132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231222222132 is an abundant number, since it is smaller than the sum of its proper divisors (363170851212).

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

231222222132 is a wasteful number, since it uses less digits than its factorization.

231222222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17343520 (or 17343518 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

It can be divided in two parts, 231222 and 222132, that added together give a palindrome (453354).

The spelling of 231222222132 in words is "two hundred thirty-one billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred thirty-two".