102200222172 has 24 divisors (see below), whose sum is σ = 238952875392. Its totient is φ = 33997356400.

The previous prime is 102200222171. The next prime is 102200222213. The reversal of 102200222172 is 271222002201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200222171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8666904 + ... + 8678687.

It is an arithmetic number, because the mean of its divisors is an integer number (9956369808).

Almost surely, 2^102200222172 is an apocalyptic number.

102200222172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102200222172 is an abundant number, since it is smaller than the sum of its proper divisors (136752653220).

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

102200222172 is a wasteful number, since it uses less digits than its factorization.

102200222172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17346089 (or 17346087 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 102200222172 its reverse (271222002201), we get a palindrome (373422224373).

The spelling of 102200222172 in words is "one hundred two billion, two hundred million, two hundred twenty-two thousand, one hundred seventy-two".