20112022012122 has 24 divisors (see below), whose sum is σ = 45078670028340. Its totient is φ = 6472834670400.

The previous prime is 20112022012109. The next prime is 20112022012129. The reversal of 20112022012122 is 22121022021102.

It is a happy number.

20112022012122 is a `hidden beast` number, since 201 + 120 + 220 + 1 + 2 + 122 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17602044039441 + 2509977972681 = 4195479^2 + 1584291^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20112022012095 and 20112022012104.

It is not an unprimeable number, because it can be changed into a prime (20112022012129) 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, 19264388379 + ... + 19264389422.

Almost surely, 2^{20112022012122} is an apocalyptic number.

20112022012122 is an abundant number, since it is smaller than the sum of its proper divisors (24966648016218).

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

20112022012122 is a wasteful number, since it uses less digits than its factorization.

20112022012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38528777838 (or 38528777835 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20112022012122 its reverse (22121022021102), we get a palindrome (42233044033224).

The spelling of 20112022012122 in words is "twenty trillion, one hundred twelve billion, twenty-two million, twelve thousand, one hundred twenty-two".