221993952001 has 8 divisors (see below), whose sum is σ = 222286731840. Its totient is φ = 221701360848.

The previous prime is 221993951983. The next prime is 221993952007. The reversal of 221993952001 is 100259399122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221993952001 - 2³⁵ = 187634213633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221993952007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389660 + ... + 2480818.

It is an arithmetic number, because the mean of its divisors is an integer number (27785841480).

Almost surely, 2^221993952001 is an apocalyptic number.

It is an amenable number.

221993952001 is a deficient number, since it is larger than the sum of its proper divisors (292779839).

221993952001 is a wasteful number, since it uses less digits than its factorization.

221993952001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94343.

The product of its (nonzero) digits is 87480, while the sum is 43.

The spelling of 221993952001 in words is "two hundred twenty-one billion, nine hundred ninety-three million, nine hundred fifty-two thousand, one".