22222100222 has 64 divisors (see below), whose sum is σ = 41885424000. Its totient is φ = 8621555712.

The previous prime is 22222100203. The next prime is 22222100269. The reversal of 22222100222 is 22200122222.

It is a super-2 number, since 2×22222100222² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 22222100222.

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 31 ways as a sum of consecutive naturals, for example, 1850654 + ... + 1862622.

It is an arithmetic number, because the mean of its divisors is an integer number (654459750).

Almost surely, 2^22222100222 is an apocalyptic number.

22222100222 is a deficient number, since it is larger than the sum of its proper divisors (19663323778).

22222100222 is a wasteful number, since it uses less digits than its factorization.

22222100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12293.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22222100222 its reverse (22200122222), we get a palindrome (44422222444).

The spelling of 22222100222 in words is "twenty-two billion, two hundred twenty-two million, one hundred thousand, two hundred twenty-two".