131012212144220 has 96 divisors (see below), whose sum is σ = 300327926169600. Its totient is φ = 47610518457600.

The previous prime is 131012212144217. The next prime is 131012212144291. The reversal of 131012212144220 is 22441212210131.

It is a self number, because there is not a number n which added to its sum of digits gives 131012212144220.

It is a congruent number.

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, 2681410151 + ... + 2681459009.

It is an arithmetic number, because the mean of its divisors is an integer number (3128415897600).

Almost surely, 2^{131012212144220} is an apocalyptic number.

131012212144220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131012212144220 is an abundant number, since it is smaller than the sum of its proper divisors (169315714025380).

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

131012212144220 is a wasteful number, since it uses less digits than its factorization.

131012212144220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56379 (or 56377 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 131012212144220 its reverse (22441212210131), we get a palindrome (153453424354351).

The spelling of 131012212144220 in words is "one hundred thirty-one trillion, twelve billion, two hundred twelve million, one hundred forty-four thousand, two hundred twenty".