22120222222 has 32 divisors (see below), whose sum is σ = 38741778432. Its totient is φ = 9274898304.

The previous prime is 22120222211. The next prime is 22120222321. The reversal of 22120222222 is 22222202122.

22120222222 is a modest number, since divided by 222222 gives 22120 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 22120222222.

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, 2491363 + ... + 2500225.

It is an arithmetic number, because the mean of its divisors is an integer number (1210680576).

Almost surely, 2^22120222222 is an apocalyptic number.

22120222222 is a deficient number, since it is larger than the sum of its proper divisors (16621556210).

22120222222 is a wasteful number, since it uses less digits than its factorization.

22120222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12712.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 22120222222 its reverse (22222202122), we get a palindrome (44342424344).

The spelling of 22120222222 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".