20021322331232 has 24 divisors (see below), whose sum is σ = 39417962295096. Its totient is φ = 10010411272192.

The previous prime is 20021322331189. The next prime is 20021322331247. The reversal of 20021322331232 is 23213322312002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6503873 + ... + 9074304.

It is an arithmetic number, because the mean of its divisors is an integer number (1642415095629).

Almost surely, 2^{20021322331232} is an apocalyptic number.

It is an amenable number.

20021322331232 is a deficient number, since it is larger than the sum of its proper divisors (19396639963864).

20021322331232 is a wasteful number, since it uses less digits than its factorization.

20021322331232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15618350 (or 15618342 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20021322331232 its reverse (23213322312002), we get a palindrome (43234644643234).

The spelling of 20021322331232 in words is "twenty trillion, twenty-one billion, three hundred twenty-two million, three hundred thirty-one thousand, two hundred thirty-two".