20022222222 has 32 divisors (see below), whose sum is σ = 44498453760. Its totient is φ = 6673380120.

The previous prime is 20022222163. The next prime is 20022222239. The reversal of 20022222222 is 22222222002.

20022222222 is a `hidden beast` number, since 200 + 22 + 222 + 222 = 666.

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

20022222222 is a modest number, since divided by 222222 gives 20022 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20022222195 and 20022222204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 981943 + ... + 1002125.

It is an arithmetic number, because the mean of its divisors is an integer number (1390576680).

Almost surely, 2^20022222222 is an apocalyptic number.

20022222222 is an abundant number, since it is smaller than the sum of its proper divisors (24476231538).

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

20022222222 is a wasteful number, since it uses less digits than its factorization.

20022222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38565 (or 38559 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 20022222222 its reverse (22222222002), we get a palindrome (42244444224).

It can be divided in two parts, 2002 and 2222222, that multiplied together give a palindrome (4448888444).

The spelling of 20022222222 in words is "twenty billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".