20112102021122 has 8 divisors (see below), whose sum is σ = 30299891691900. Its totient is φ = 10012138123824.

The previous prime is 20112102021119. The next prime is 20112102021169. The reversal of 20112102021122 is 22112020121102.

It can be written as a sum of positive squares in 2 ways, for example, as 16115897120521 + 3996204900601 = 4014461^2 + 1999051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20112102021122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21956442797 + ... + 21956443712.

Almost surely, 2^{20112102021122} is an apocalyptic number.

20112102021122 is a deficient number, since it is larger than the sum of its proper divisors (10187789670778).

20112102021122 is a wasteful number, since it uses less digits than its factorization.

20112102021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43912886740.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20112102021122 its reverse (22112020121102), we get a palindrome (42224122142224).

The spelling of 20112102021122 in words is "twenty trillion, one hundred twelve billion, one hundred two million, twenty-one thousand, one hundred twenty-two".