102402224172 has 18 divisors (see below), whose sum is σ = 258850066748. Its totient is φ = 34134074712.

The previous prime is 102402224167. The next prime is 102402224173. The reversal of 102402224172 is 271422204201.

It is a happy number.

102402224172 is a `hidden beast` number, since 1 + 0 + 24 + 0 + 222 + 417 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (102402224173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1422253078 + ... + 1422253149.

Almost surely, 2^102402224172 is an apocalyptic number.

102402224172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102402224172 is an abundant number, since it is smaller than the sum of its proper divisors (156447842576).

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

102402224172 is a wasteful number, since it uses less digits than its factorization.

102402224172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844506237 (or 2844506232 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

Adding to 102402224172 its reverse (271422204201), we get a palindrome (373824428373).

The spelling of 102402224172 in words is "one hundred two billion, four hundred two million, two hundred twenty-four thousand, one hundred seventy-two".