21022300123312 has 20 divisors (see below), whose sum is σ = 40730777561656. Its totient is φ = 10511131720320.

The previous prime is 21022300123303. The next prime is 21022300123327. The reversal of 21022300123312 is 21332100322012.

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, 17542012 + ... + 18702052.

Almost surely, 2^{21022300123312} is an apocalyptic number.

It is an amenable number.

21022300123312 is a deficient number, since it is larger than the sum of its proper divisors (19708477438344).

21022300123312 is a wasteful number, since it uses less digits than its factorization.

21022300123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292676 (or 2292670 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21022300123312 its reverse (21332100322012), we get a palindrome (42354400445324).

The spelling of 21022300123312 in words is "twenty-one trillion, twenty-two billion, three hundred million, one hundred twenty-three thousand, three hundred twelve".