102402132220 has 24 divisors (see below), whose sum is σ = 216363775824. Its totient is φ = 40709558016.

The previous prime is 102402132199. The next prime is 102402132241. The reversal of 102402132220 is 22231204201.

It is an interprime number because it is at equal distance from previous prime (102402132199) and next prime (102402132241).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15702589 + ... + 15709108.

It is an arithmetic number, because the mean of its divisors is an integer number (9015157326).

Almost surely, 2^102402132220 is an apocalyptic number.

102402132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102402132220 is an abundant number, since it is smaller than the sum of its proper divisors (113961643604).

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

102402132220 is a wasteful number, since it uses less digits than its factorization.

102402132220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31411869 (or 31411867 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 102402132220 its reverse (22231204201), we get a palindrome (124633336421).

The spelling of 102402132220 in words is "one hundred two billion, four hundred two million, one hundred thirty-two thousand, two hundred twenty".