231550351102220 has 24 divisors (see below), whose sum is σ = 488104618456224. Its totient is φ = 92267972604416.

The previous prime is 231550351102199. The next prime is 231550351102229. The reversal of 231550351102220 is 22201153055132.

It is a super-2 number, since 2×231550351102220² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231550351102229) 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, 22010484389 + ... + 22010494908.

It is an arithmetic number, because the mean of its divisors is an integer number (20337692435676).

Almost surely, 2^{231550351102220} is an apocalyptic number.

231550351102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231550351102220 is an abundant number, since it is smaller than the sum of its proper divisors (256554267354004).

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

231550351102220 is a wasteful number, since it uses less digits than its factorization.

231550351102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44020979569 (or 44020979567 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 231550351102220 in words is "two hundred thirty-one trillion, five hundred fifty billion, three hundred fifty-one million, one hundred two thousand, two hundred twenty".