102213532520 has 64 divisors (see below), whose sum is σ = 250962667200. Its totient is φ = 37157460480.

The previous prime is 102213532511. The next prime is 102213532643. The reversal of 102213532520 is 25235312201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102213532520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519847 + ... + 1585673.

It is an arithmetic number, because the mean of its divisors is an integer number (3921291675).

Almost surely, 2^102213532520 is an apocalyptic number.

102213532520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102213532520 is an abundant number, since it is smaller than the sum of its proper divisors (148749134680).

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

102213532520 is a wasteful number, since it uses less digits than its factorization.

102213532520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69378 (or 69374 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 102213532520 its reverse (25235312201), we get a palindrome (127448844721).

The spelling of 102213532520 in words is "one hundred two billion, two hundred thirteen million, five hundred thirty-two thousand, five hundred twenty".