131220002220232 has 32 divisors (see below), whose sum is σ = 264497204937600. Its totient is φ = 60834357129024.

The previous prime is 131220002220163. The next prime is 131220002220247. The reversal of 131220002220232 is 232022200022131.

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, 9183923583 + ... + 9183937870.

It is an arithmetic number, because the mean of its divisors is an integer number (8265537654300).

Almost surely, 2^{131220002220232} is an apocalyptic number.

It is an amenable number.

131220002220232 is an abundant number, since it is smaller than the sum of its proper divisors (133277202717368).

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

131220002220232 is a wasteful number, since it uses less digits than its factorization.

131220002220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18367861525 (or 18367861521 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 131220002220232 its reverse (232022200022131), we get a palindrome (363242202242363).

The spelling of 131220002220232 in words is "one hundred thirty-one trillion, two hundred twenty billion, two million, two hundred twenty thousand, two hundred thirty-two".