21012033322 has 32 divisors (see below), whose sum is σ = 36898727040. Its totient is φ = 8787863040.

The previous prime is 21012033311. The next prime is 21012033347. The reversal of 21012033322 is 22333021012.

It is a self number, because there is not a number n which added to its sum of digits gives 21012033322.

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 15 ways as a sum of consecutive naturals, for example, 20322 + ... + 206002.

It is an arithmetic number, because the mean of its divisors is an integer number (1153085220).

Almost surely, 2^21012033322 is an apocalyptic number.

21012033322 is a deficient number, since it is larger than the sum of its proper divisors (15886693718).

21012033322 is a wasteful number, since it uses less digits than its factorization.

21012033322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185886.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21012033322 its reverse (22333021012), we get a palindrome (43345054334).

The spelling of 21012033322 in words is "twenty-one billion, twelve million, thirty-three thousand, three hundred twenty-two".