221945053502 has 8 divisors (see below), whose sum is σ = 333182014200. Its totient is φ = 110884382104.

The previous prime is 221945053493. The next prime is 221945053523. The reversal of 221945053502 is 205350549122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44069177 + ... + 44074212.

It is an arithmetic number, because the mean of its divisors is an integer number (41647751775).

Almost surely, 2^221945053502 is an apocalyptic number.

221945053502 is a deficient number, since it is larger than the sum of its proper divisors (111236960698).

221945053502 is a wasteful number, since it uses less digits than its factorization.

221945053502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88144650.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 221945053502 in words is "two hundred twenty-one billion, nine hundred forty-five million, fifty-three thousand, five hundred two".