102205255252520 has 64 divisors (see below), whose sum is σ = 269223599232000. Its totient is φ = 34187123704320.

The previous prime is 102205255252519. The next prime is 102205255252523. The reversal of 102205255252520 is 25252552502201.

It is not an unprimeable number, because it can be changed into a prime (102205255252523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4451436920 + ... + 4451459879.

It is an arithmetic number, because the mean of its divisors is an integer number (4206618738000).

Almost surely, 2^{102205255252520} is an apocalyptic number.

102205255252520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102205255252520 is an abundant number, since it is smaller than the sum of its proper divisors (167018343979480).

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

102205255252520 is a wasteful number, since it uses less digits than its factorization.

102205255252520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902896858 (or 8902896854 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 38.

The spelling of 102205255252520 in words is "one hundred two trillion, two hundred five billion, two hundred fifty-five million, two hundred fifty-two thousand, five hundred twenty".