131202211212220 has 12 divisors (see below), whose sum is σ = 275524643545704. Its totient is φ = 52480884484880.

The previous prime is 131202211212217. The next prime is 131202211212263. The reversal of 131202211212220 is 22212112202131.

It is a junction number, because it is equal to n+sod(n) for n = 131202211212191 and 131202211212200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3280055280286 + ... + 3280055280325.

It is an arithmetic number, because the mean of its divisors is an integer number (22960386962142).

Almost surely, 2^{131202211212220} is an apocalyptic number.

131202211212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131202211212220 is an abundant number, since it is smaller than the sum of its proper divisors (144322432333484).

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

131202211212220 is a wasteful number, since it uses less digits than its factorization.

131202211212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6560110560620 (or 6560110560618 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 131202211212220 its reverse (22212112202131), we get a palindrome (153414323414351).

The spelling of 131202211212220 in words is "one hundred thirty-one trillion, two hundred two billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty".