221014921772490 has 64 divisors (see below), whose sum is σ = 535946901025536. Its totient is φ = 58325066053632.

The previous prime is 221014921772471. The next prime is 221014921772521. The reversal of 221014921772490 is 94277129410122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33598564 + ... + 39634496.

It is an arithmetic number, because the mean of its divisors is an integer number (8374170328524).

Almost surely, 2^{221014921772490} is an apocalyptic number.

221014921772490 is an abundant number, since it is smaller than the sum of its proper divisors (314931979253046).

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

221014921772490 is a wasteful number, since it uses less digits than its factorization.

221014921772490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048623.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 221014921772490 in words is "two hundred twenty-one trillion, fourteen billion, nine hundred twenty-one million, seven hundred seventy-two thousand, four hundred ninety".