221301222320202 has 16 divisors (see below), whose sum is σ = 443078873547840. Its totient is φ = 73687669288832.

The previous prime is 221301222320179. The next prime is 221301222320219. The reversal of 221301222320202 is 202023222103122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19851198438 + ... + 19851209585.

It is an arithmetic number, because the mean of its divisors is an integer number (27692429596740).

Almost surely, 2^{221301222320202} is an apocalyptic number.

221301222320202 is an abundant number, since it is smaller than the sum of its proper divisors (221777651227638).

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

221301222320202 is a wasteful number, since it uses less digits than its factorization.

221301222320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39702408957.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 221301222320202 its reverse (202023222103122), we get a palindrome (423324444423324).

The spelling of 221301222320202 in words is "two hundred twenty-one trillion, three hundred one billion, two hundred twenty-two million, three hundred twenty thousand, two hundred two".