201221301232 has 40 divisors (see below), whose sum is σ = 454654556000. Its totient is φ = 86237698176.

The previous prime is 201221301163. The next prime is 201221301349. The reversal of 201221301232 is 232103122102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18327357 + ... + 18338332.

It is an arithmetic number, because the mean of its divisors is an integer number (11366363900).

Almost surely, 2^201221301232 is an apocalyptic number.

It is an amenable number.

201221301232 is an abundant number, since it is smaller than the sum of its proper divisors (253433254768).

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

201221301232 is an equidigital number, since it uses as much as digits as its factorization.

201221301232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36665718 (or 36665698 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201221301232 its reverse (232103122102), we get a palindrome (433324423334).

The spelling of 201221301232 in words is "two hundred one billion, two hundred twenty-one million, three hundred one thousand, two hundred thirty-two".