131112022220 has 96 divisors (see below), whose sum is σ = 284074293888. Its totient is φ = 50809321472.

The previous prime is 131112022183. The next prime is 131112022247. The reversal of 131112022220 is 22220211131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28606049 + ... + 28610631.

It is an arithmetic number, because the mean of its divisors is an integer number (2959107228).

Almost surely, 2^131112022220 is an apocalyptic number.

131112022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131112022220 is an abundant number, since it is smaller than the sum of its proper divisors (152962271668).

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

131112022220 is a wasteful number, since it uses less digits than its factorization.

131112022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4979 (or 4977 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 131112022220 its reverse (22220211131), we get a palindrome (153332233351).

The spelling of 131112022220 in words is "one hundred thirty-one billion, one hundred twelve million, twenty-two thousand, two hundred twenty".