21321100020332 has 48 divisors (see below), whose sum is σ = 43447858090560. Its totient is φ = 8964981921792.

The previous prime is 21321100020263. The next prime is 21321100020427. The reversal of 21321100020332 is 23302000112312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67716644 + ... + 68030772.

It is an arithmetic number, because the mean of its divisors is an integer number (905163710220).

Almost surely, 2^{21321100020332} is an apocalyptic number.

It is an amenable number.

21321100020332 is an abundant number, since it is smaller than the sum of its proper divisors (22126758070228).

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

21321100020332 is a wasteful number, since it uses less digits than its factorization.

21321100020332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359930 (or 359928 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21321100020332 its reverse (23302000112312), we get a palindrome (44623100132644).

The spelling of 21321100020332 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred million, twenty thousand, three hundred thirty-two".