210221323232 has 48 divisors (see below), whose sum is σ = 419292195840. Its totient is φ = 103735562112.

The previous prime is 210221323229. The next prime is 210221323243. The reversal of 210221323232 is 232323122012.

It is a junction number, because it is equal to n+sod(n) for n = 210221323198 and 210221323207.

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, 6310973 + ... + 6344195.

It is an arithmetic number, because the mean of its divisors is an integer number (8735254080).

Almost surely, 2^210221323232 is an apocalyptic number.

It is an amenable number.

210221323232 is a deficient number, since it is larger than the sum of its proper divisors (209070872608).

210221323232 is a wasteful number, since it uses less digits than its factorization.

210221323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35815 (or 35807 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 210221323232 its reverse (232323122012), we get a palindrome (442544445244).

The spelling of 210221323232 in words is "two hundred ten billion, two hundred twenty-one million, three hundred twenty-three thousand, two hundred thirty-two".