21022133330 has 64 divisors (see below), whose sum is σ = 43521045120. Its totient is φ = 7230643200.

The previous prime is 21022133299. The next prime is 21022133371. The reversal of 21022133330 is 3333122012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1373882 + ... + 1389098.

It is an arithmetic number, because the mean of its divisors is an integer number (680016330).

Almost surely, 2^21022133330 is an apocalyptic number.

21022133330 is an abundant number, since it is smaller than the sum of its proper divisors (22498911790).

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

21022133330 is a wasteful number, since it uses less digits than its factorization.

21022133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15915.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21022133330 its reverse (3333122012), we get a palindrome (24355255342).

The spelling of 21022133330 in words is "twenty-one billion, twenty-two million, one hundred thirty-three thousand, three hundred thirty".