231022222233220 has 48 divisors (see below), whose sum is σ = 531134364450816. Its totient is φ = 83709119648000.

The previous prime is 231022222233139. The next prime is 231022222233247. The reversal of 231022222233220 is 22332222220132.

231022222233220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868445316 + ... + 1868568955.

It is an arithmetic number, because the mean of its divisors is an integer number (11065299259392).

Almost surely, 2^{231022222233220} is an apocalyptic number.

231022222233220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231022222233220 is an abundant number, since it is smaller than the sum of its proper divisors (300112142217596).

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

231022222233220 is a wasteful number, since it uses less digits than its factorization.

231022222233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737014572 (or 3737014570 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 231022222233220 its reverse (22332222220132), we get a palindrome (253354444453352).

The spelling of 231022222233220 in words is "two hundred thirty-one trillion, twenty-two billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred twenty".