21332333330 has 64 divisors (see below), whose sum is σ = 47894775552. Its totient is φ = 6646026240.

The previous prime is 21332333327. The next prime is 21332333389. The reversal of 21332333330 is 3333323312.

It is a self number, because there is not a number n which added to its sum of digits gives 21332333330.

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, 2195042 + ... + 2204738.

It is an arithmetic number, because the mean of its divisors is an integer number (748355868).

Almost surely, 2^21332333330 is an apocalyptic number.

21332333330 is an abundant number, since it is smaller than the sum of its proper divisors (26562442222).

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

21332333330 is a wasteful number, since it uses less digits than its factorization.

21332333330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12579.

The product of its (nonzero) digits is 8748, while the sum is 26.

Adding to 21332333330 its reverse (3333323312), we get a palindrome (24665656642).

The spelling of 21332333330 in words is "twenty-one billion, three hundred thirty-two million, three hundred thirty-three thousand, three hundred thirty".