21300330203212 has 12 divisors (see below), whose sum is σ = 37275802179840. Its totient is φ = 10650101008976.

The previous prime is 21300330203123. The next prime is 21300330203227. The reversal of 21300330203212 is 21230203300312.

It is a super-2 number, since 2×21300330203212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15271483 + ... + 16607794.

It is an arithmetic number, because the mean of its divisors is an integer number (3106316848320).

Almost surely, 2^{21300330203212} is an apocalyptic number.

It is an amenable number.

21300330203212 is a deficient number, since it is larger than the sum of its proper divisors (15975471976628).

21300330203212 is a wasteful number, since it uses less digits than its factorization.

21300330203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32046320 (or 32046318 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21300330203212 its reverse (21230203300312), we get a palindrome (42530533503524).

The spelling of 21300330203212 in words is "twenty-one trillion, three hundred billion, three hundred thirty million, two hundred three thousand, two hundred twelve".