102002521200 has 120 divisors (see below), whose sum is σ = 329242843776. Its totient is φ = 26992992000.

The previous prime is 102002521199. The next prime is 102002521217. The reversal of 102002521200 is 2125200201.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102002521200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167236 + ... + 481635.

Almost surely, 2^102002521200 is an apocalyptic number.

102002521200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002521200 is an abundant number, since it is smaller than the sum of its proper divisors (227240322576).

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

102002521200 is a wasteful number, since it uses less digits than its factorization.

102002521200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649023 (or 649012 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 102002521200 its reverse (2125200201), we get a palindrome (104127721401).

The spelling of 102002521200 in words is "one hundred two billion, two million, five hundred twenty-one thousand, two hundred".