21333412300 has 18 divisors (see below), whose sum is σ = 46293504908. Its totient is φ = 8533364880.

The previous prime is 21333412277. The next prime is 21333412337. The reversal of 21333412300 is 321433312.

It is a super-2 number, since 2×21333412300² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106666962 + ... + 106667161.

Almost surely, 2^21333412300 is an apocalyptic number.

21333412300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21333412300 is an abundant number, since it is smaller than the sum of its proper divisors (24960092608).

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

21333412300 is a wasteful number, since it uses less digits than its factorization.

21333412300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213334137 (or 213334130 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21333412300 its reverse (321433312), we get a palindrome (21654845612).

The spelling of 21333412300 in words is "twenty-one billion, three hundred thirty-three million, four hundred twelve thousand, three hundred".