21230212333320 has 96 divisors (see below), whose sum is σ = 69411353094720. Its totient is φ = 5627489400960.

The previous prime is 21230212333249. The next prime is 21230212333333. The reversal of 21230212333320 is 2333321203212.

21230212333320 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 0 + 2 + 1 + 2 + 333 + 320 = 666.

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, 176505186 + ... + 176625425.

It is an arithmetic number, because the mean of its divisors is an integer number (723034928070).

Almost surely, 2^{21230212333320} is an apocalyptic number.

21230212333320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21230212333320 is an abundant number, since it is smaller than the sum of its proper divisors (48181140761400).

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

21230212333320 is a wasteful number, since it uses less digits than its factorization.

21230212333320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353130795 (or 353130788 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21230212333320 its reverse (2333321203212), we get a palindrome (23563533536532).

The spelling of 21230212333320 in words is "twenty-one trillion, two hundred thirty billion, two hundred twelve million, three hundred thirty-three thousand, three hundred twenty".