21033014012 has 24 divisors (see below), whose sum is σ = 37204441680. Its totient is φ = 10403274240.

The previous prime is 21033013993. The next prime is 21033014021. The reversal of 21033014012 is 21041033012.

It is a super-2 number, since 2×21033014012² (a number of 21 digits) contains 22 as substring.

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, 915587 + ... + 938277.

It is an arithmetic number, because the mean of its divisors is an integer number (1550185070).

Almost surely, 2^21033014012 is an apocalyptic number.

It is an amenable number.

21033014012 is a deficient number, since it is larger than the sum of its proper divisors (16171427668).

21033014012 is a wasteful number, since it uses less digits than its factorization.

21033014012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25181 (or 25179 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21033014012 its reverse (21041033012), we get a palindrome (42074047024).

The spelling of 21033014012 in words is "twenty-one billion, thirty-three million, fourteen thousand, twelve".