131200022220 has 24 divisors (see below), whose sum is σ = 367360062384. Its totient is φ = 34986672576.

The previous prime is 131200022189. The next prime is 131200022231. The reversal of 131200022220 is 22220002131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 131200022220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093333459 + ... + 1093333578.

It is an arithmetic number, because the mean of its divisors is an integer number (15306669266).

Almost surely, 2^131200022220 is an apocalyptic number.

131200022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131200022220 is an abundant number, since it is smaller than the sum of its proper divisors (236160040164).

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

131200022220 is a wasteful number, since it uses less digits than its factorization.

131200022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186667049 (or 2186667047 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 131200022220 its reverse (22220002131), we get a palindrome (153420024351).

The spelling of 131200022220 in words is "one hundred thirty-one billion, two hundred million, twenty-two thousand, two hundred twenty".