131222140100 has 36 divisors (see below), whose sum is σ = 285043711764. Its totient is φ = 52435092480.

The previous prime is 131222140081. The next prime is 131222140117. The reversal of 131222140100 is 1041222131.

It can be written as a sum of positive squares in 6 ways, for example, as 2444511364 + 128777628736 = 49442^2 + 358856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573857 + ... + 769256.

Almost surely, 2^131222140100 is an apocalyptic number.

131222140100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222140100 is an abundant number, since it is smaller than the sum of its proper divisors (153821571664).

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

131222140100 is a wasteful number, since it uses less digits than its factorization.

131222140100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344104 (or 1344097 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 131222140100 its reverse (1041222131), we get a palindrome (132263362231).

The spelling of 131222140100 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred forty thousand, one hundred".