20331220022 has 4 divisors (see below), whose sum is σ = 30496830036. Its totient is φ = 10165610010.

The previous prime is 20331219973. The next prime is 20331220031. The reversal of 20331220022 is 22002213302.

20331220022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5082805004 + ... + 5082805007.

It is an arithmetic number, because the mean of its divisors is an integer number (7624207509).

Almost surely, 2^20331220022 is an apocalyptic number.

20331220022 is a deficient number, since it is larger than the sum of its proper divisors (10165610014).

20331220022 is a wasteful number, since it uses less digits than its factorization.

20331220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10165610013.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20331220022 its reverse (22002213302), we get a palindrome (42333433324).

The spelling of 20331220022 in words is "twenty billion, three hundred thirty-one million, two hundred twenty thousand, twenty-two".