20222222222 has 16 divisors (see below), whose sum is σ = 30706556544. Its totient is φ = 9987180000.

The previous prime is 20222222221. The next prime is 20222222233. The reversal of 20222222222 is 22222222202.

20222222222 is a modest number, since divided by 222222 gives 20222 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20222222194 and 20222222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222222221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33854 + ... + 203937.

It is an arithmetic number, because the mean of its divisors is an integer number (1919159784).

Almost surely, 2^20222222222 is an apocalyptic number.

20222222222 is a deficient number, since it is larger than the sum of its proper divisors (10484334322).

20222222222 is a wasteful number, since it uses less digits than its factorization.

20222222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238315.

The product of its (nonzero) digits is 1024, while the sum is 20.

Subtracting from 20222222222 its sum of digits (20), we obtain a palindrome (20222222202).

Adding to 20222222222 its reverse (22222222202), we get a palindrome (42444444424).

It can be divided in two parts, 202 and 22222222, that multiplied together give a palindrome (4488888844).

The spelling of 20222222222 in words is "twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-two".