221525104006250 has 48 divisors (see below), whose sum is σ = 453090531412512. Its totient is φ = 80554583250000.

The previous prime is 221525104006249. The next prime is 221525104006321. The reversal of 221525104006250 is 52600401525122.

It is a self number, because there is not a number n which added to its sum of digits gives 221525104006250.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1611022916 + ... + 1611160415.

It is an arithmetic number, because the mean of its divisors is an integer number (9439386071094).

Almost surely, 2^{221525104006250} is an apocalyptic number.

221525104006250 is an abundant number, since it is smaller than the sum of its proper divisors (231565427406262).

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

221525104006250 is an equidigital number, since it uses as much as digits as its factorization.

221525104006250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222183369 (or 3222183349 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 221525104006250 in words is "two hundred twenty-one trillion, five hundred twenty-five billion, one hundred four million, six thousand, two hundred fifty".