20021020110222 has 24 divisors (see below), whose sum is σ = 42260435805096. Its totient is φ = 6322427402544.

The previous prime is 20021020110181. The next prime is 20021020110263. The reversal of 20021020110222 is 22201102012002.

It is an interprime number because it is at equal distance from previous prime (20021020110181) and next prime (20021020110263).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4621655293 + ... + 4621659624.

It is an arithmetic number, because the mean of its divisors is an integer number (1760851491879).

Almost surely, 2^{20021020110222} is an apocalyptic number.

20021020110222 is an abundant number, since it is smaller than the sum of its proper divisors (22239415694874).

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

20021020110222 is a wasteful number, since it uses less digits than its factorization.

20021020110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9243314960 (or 9243314941 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20021020110222 its reverse (22201102012002), we get a palindrome (42222122122224).

The spelling of 20021020110222 in words is "twenty trillion, twenty-one billion, twenty million, one hundred ten thousand, two hundred twenty-two".