21333013111204 has 12 divisors (see below), whose sum is σ = 37332820565404. Its totient is φ = 10666492949664.

The previous prime is 21333013111181. The next prime is 21333013111217. The reversal of 21333013111204 is 40211131033312.

It can be written as a sum of positive squares in 2 ways, for example, as 2408077032804 + 18924936078400 = 1551798^2 + 4350280^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667042 + ... + 6565894.

Almost surely, 2^{21333013111204} is an apocalyptic number.

It is an amenable number.

21333013111204 is a deficient number, since it is larger than the sum of its proper divisors (15999807454200).

21333013111204 is a wasteful number, since it uses less digits than its factorization.

21333013111204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6802974 (or 6802972 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21333013111204 its reverse (40211131033312), we get a palindrome (61544144144516).

The spelling of 21333013111204 in words is "twenty-one trillion, three hundred thirty-three billion, thirteen million, one hundred eleven thousand, two hundred four".