21022733326 has 48 divisors (see below), whose sum is σ = 37418425200. Its totient is φ = 8829934848.

The previous prime is 21022733323. The next prime is 21022733357. The reversal of 21022733326 is 62333722012.

It is a happy number.

It is a super-2 number, since 2×21022733326² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022733323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1943140 + ... + 1953928.

It is an arithmetic number, because the mean of its divisors is an integer number (779550525).

Almost surely, 2^21022733326 is an apocalyptic number.

21022733326 is a deficient number, since it is larger than the sum of its proper divisors (16395691874).

21022733326 is a wasteful number, since it uses less digits than its factorization.

21022733326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11201 (or 11194 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The spelling of 21022733326 in words is "twenty-one billion, twenty-two million, seven hundred thirty-three thousand, three hundred twenty-six".