20122122021112 has 32 divisors (see below), whose sum is σ = 39971382498000. Its totient is φ = 9463769711104.

The previous prime is 20122122021107. The next prime is 20122122021161. The reversal of 20122122021112 is 21112022122102.

It is a self number, because there is not a number n which added to its sum of digits gives 20122122021112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42452362 + ... + 42923737.

Almost surely, 2^{20122122021112} is an apocalyptic number.

It is an amenable number.

20122122021112 is a deficient number, since it is larger than the sum of its proper divisors (19849260476888).

20122122021112 is a wasteful number, since it uses less digits than its factorization.

20122122021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85377855 (or 85377851 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20122122021112 its reverse (21112022122102), we get a palindrome (41234144143214).

The spelling of 20122122021112 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, twenty-one thousand, one hundred twelve".