21233233212 has 24 divisors (see below), whose sum is σ = 49553702016. Its totient is φ = 7076388528.

The previous prime is 21233233199. The next prime is 21233233237.

21233233212 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103198 + ... + 230469.

It is an arithmetic number, because the mean of its divisors is an integer number (2064737584).

Almost surely, 2^21233233212 is an apocalyptic number.

It is an amenable number.

21233233212 is an abundant number, since it is smaller than the sum of its proper divisors (28320468804).

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

21233233212 is a wasteful number, since it uses less digits than its factorization.

21233233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338977 (or 338975 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The spelling of 21233233212 in words is "twenty-one billion, two hundred thirty-three million, two hundred thirty-three thousand, two hundred twelve".