21322133312100 has 72 divisors (see below), whose sum is σ = 63359391489408. Its totient is φ = 5532229180800.

The previous prime is 21322133312089. The next prime is 21322133312213. The reversal of 21322133312100 is 121333122312.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 960445356 + ... + 960467555.

It is an arithmetic number, because the mean of its divisors is an integer number (879991548464).

Almost surely, 2^{21322133312100} is an apocalyptic number.

21322133312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21322133312100 is an abundant number, since it is smaller than the sum of its proper divisors (42037258177308).

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

21322133312100 is a wasteful number, since it uses less digits than its factorization.

21322133312100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920912965 (or 1920912958 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21322133312100 its reverse (121333122312), we get a palindrome (21443466434412).

The spelling of 21322133312100 in words is "twenty-one trillion, three hundred twenty-two billion, one hundred thirty-three million, three hundred twelve thousand, one hundred".