22012222222 has 16 divisors (see below), whose sum is σ = 33905611152. Its totient is φ = 10714072320.

The previous prime is 22012222213. The next prime is 22012222241. The reversal of 22012222222 is 22222221022.

22012222222 is a modest number, since divided by 222222 gives 22012 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 22012222222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918208 + ... + 941875.

It is an arithmetic number, because the mean of its divisors is an integer number (2119100697).

Almost surely, 2^22012222222 is an apocalyptic number.

22012222222 is a deficient number, since it is larger than the sum of its proper divisors (11893388930).

22012222222 is a wasteful number, since it uses less digits than its factorization.

22012222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860243.

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

Adding to 22012222222 its reverse (22222221022), we get a palindrome (44234443244).

The spelling of 22012222222 in words is "twenty-two billion, twelve million, two hundred twenty-two thousand, two hundred twenty-two".