221032320243201 has 12 divisors (see below), whose sum is σ = 323765652188160. Its totient is φ = 145279459314360.

The previous prime is 221032320243199. The next prime is 221032320243253. The reversal of 221032320243201 is 102342023230122.

221032320243201 is a `hidden beast` number, since 2 + 2 + 1 + 0 + 3 + 23 + 202 + 432 + 0 + 1 = 666.

It is not a de Polignac number, because 221032320243201 - 2¹ = 221032320243199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221032320243271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172951736641 + ... + 172951737918.

It is an arithmetic number, because the mean of its divisors is an integer number (26980471015680).

Almost surely, 2^{221032320243201} is an apocalyptic number.

It is an amenable number.

221032320243201 is a deficient number, since it is larger than the sum of its proper divisors (102733331944959).

221032320243201 is a wasteful number, since it uses less digits than its factorization.

221032320243201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345903474636 (or 345903474633 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 221032320243201 its reverse (102342023230122), we get a palindrome (323374343473323).

The spelling of 221032320243201 in words is "two hundred twenty-one trillion, thirty-two billion, three hundred twenty million, two hundred forty-three thousand, two hundred one".