221332021032 has 32 divisors (see below), whose sum is σ = 554466283200. Its totient is φ = 73625842944.

The previous prime is 221332020997. The next prime is 221332021051. The reversal of 221332021032 is 230120233122.

It is a happy 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, 9456657 + ... + 9480032.

It is an arithmetic number, because the mean of its divisors is an integer number (17327071350).

Almost surely, 2^221332021032 is an apocalyptic number.

It is an amenable number.

221332021032 is an abundant number, since it is smaller than the sum of its proper divisors (333134262168).

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

221332021032 is a wasteful number, since it uses less digits than its factorization.

221332021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18937185 (or 18937181 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221332021032 its reverse (230120233122), we get a palindrome (451452254154).

The spelling of 221332021032 in words is "two hundred twenty-one billion, three hundred thirty-two million, twenty-one thousand, thirty-two".