100131202221 has 8 divisors (see below), whose sum is σ = 133516494240. Its totient is φ = 66750022512.

The previous prime is 100131202181. The next prime is 100131202229. The reversal of 100131202221 is 122202131001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100131202221 - 2³⁴ = 82951333037 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100131202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131202229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970806 + ... + 1068983.

It is an arithmetic number, because the mean of its divisors is an integer number (16689561780).

Almost surely, 2^100131202221 is an apocalyptic number.

It is an amenable number.

100131202221 is a deficient number, since it is larger than the sum of its proper divisors (33385292019).

100131202221 is a wasteful number, since it uses less digits than its factorization.

100131202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056155.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 100131202221 its reverse (122202131001), we get a palindrome (222333333222).

The spelling of 100131202221 in words is "one hundred billion, one hundred thirty-one million, two hundred two thousand, two hundred twenty-one".