21333210213030 has 64 divisors (see below), whose sum is σ = 51551423352000. Its totient is φ = 5649788183040.

The previous prime is 21333210213001. The next prime is 21333210213047. The reversal of 21333210213030 is 3031201233312.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28330236 + ... + 29073504.

It is an arithmetic number, because the mean of its divisors is an integer number (805490989875).

Almost surely, 2^{21333210213030} is an apocalyptic number.

21333210213030 is an abundant number, since it is smaller than the sum of its proper divisors (30218213138970).

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

21333210213030 is a wasteful number, since it uses less digits than its factorization.

21333210213030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749849.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21333210213030 its reverse (3031201233312), we get a palindrome (24364411446342).

The spelling of 21333210213030 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred ten million, two hundred thirteen thousand, thirty".