131200311222 has 64 divisors (see below), whose sum is σ = 324954374400. Its totient is φ = 38994514560.

The previous prime is 131200311199. The next prime is 131200311271. The reversal of 131200311222 is 222113002131.

131200311222 is a `hidden beast` number, since 13 + 120 + 0 + 311 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131200311195 and 131200311204.

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, 3743604 + ... + 3778487.

It is an arithmetic number, because the mean of its divisors is an integer number (5077412100).

Almost surely, 2^131200311222 is an apocalyptic number.

131200311222 is an abundant number, since it is smaller than the sum of its proper divisors (193754063178).

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

131200311222 is a wasteful number, since it uses less digits than its factorization.

131200311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522138 (or 7522132 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 131200311222 its reverse (222113002131), we get a palindrome (353313313353).

The spelling of 131200311222 in words is "one hundred thirty-one billion, two hundred million, three hundred eleven thousand, two hundred twenty-two".