21012333321012 has 48 divisors (see below), whose sum is σ = 53486735629824. Its totient is φ = 6367278940000.

The previous prime is 21012333320983. The next prime is 21012333321079.

21012333321012 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21012333321012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7982887 + ... + 10283537.

It is an arithmetic number, because the mean of its divisors is an integer number (1114306992288).

Almost surely, 2^{21012333321012} is an apocalyptic number.

21012333321012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21012333321012 is an abundant number, since it is smaller than the sum of its proper divisors (32474402308812).

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

21012333321012 is a wasteful number, since it uses less digits than its factorization.

21012333321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369860 (or 2369858 counting only the distinct ones).

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

It can be divided in two parts, 2101233 and 3321012, that added together give a palindrome (5422245).

The spelling of 21012333321012 in words is "twenty-one trillion, twelve billion, three hundred thirty-three million, three hundred twenty-one thousand, twelve".