102202131 has 4 divisors (see below), whose sum is σ = 136269512. Its totient is φ = 68134752.

The previous prime is 102202129. The next prime is 102202183. The reversal of 102202131 is 131202201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 102202131 - 2¹ = 102202129 is a prime.

It is a super-2 number, since 2×102202131² = 20890551161882322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102202031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17033686 + ... + 17033691.

It is an arithmetic number, because the mean of its divisors is an integer number (34067378).

Almost surely, 2^102202131 is an apocalyptic number.

102202131 is a deficient number, since it is larger than the sum of its proper divisors (34067381).

102202131 is an equidigital number, since it uses as much as digits as its factorization.

102202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34067380.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102202131 is about 10109.5069612717. The cubic root of 102202131 is about 467.5413039850.

Adding to 102202131 its reverse (131202201), we get a palindrome (233404332).

The spelling of 102202131 in words is "one hundred two million, two hundred two thousand, one hundred thirty-one".