20122111130112 has 120 divisors (see below), whose sum is σ = 58246105393476. Its totient is φ = 6687466684416.

The previous prime is 20122111130111. The next prime is 20122111130117. The reversal of 20122111130112 is 21103111122102.

It is a happy number.

20122111130112 is a `hidden beast` number, since 20 + 1 + 221 + 111 + 301 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15928527995136 + 4193583134976 = 3991056^2 + 2047824^2 .

It is a super-3 number, since 3×20122111130112³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20122111130111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4926003 + ... + 8031794.

Almost surely, 2^{20122111130112} is an apocalyptic number.

It is an amenable number.

20122111130112 is an abundant number, since it is smaller than the sum of its proper divisors (38123994263364).

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

20122111130112 is a wasteful number, since it uses less digits than its factorization.

20122111130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12958158 (or 12958139 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 20122111130112 its reverse (21103111122102), we get a palindrome (41225222252214).

The spelling of 20122111130112 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, one hundred thirty thousand, one hundred twelve".