20220111018 has 12 divisors (see below), whose sum is σ = 43810240578. Its totient is φ = 6740037000.

The previous prime is 20220111001. The next prime is 20220111053. The reversal of 20220111018 is 81011102202.

It can be written as a sum of positive squares in only one way, i.e., 12393700929 + 7826410089 = 111327^2 + 88467^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1123339501 = 20220111018 / (2 + 0 + 2 + 2 + 0 + 1 + 1 + 1 + 0 + 1 + 8).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 561669733 + ... + 561669768.

Almost surely, 2^20220111018 is an apocalyptic number.

20220111018 is an abundant number, since it is smaller than the sum of its proper divisors (23590129560).

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

20220111018 is a wasteful number, since it uses less digits than its factorization.

20220111018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123339509 (or 1123339506 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The spelling of 20220111018 in words is "twenty billion, two hundred twenty million, one hundred eleven thousand, eighteen".