22021222222 has 16 divisors (see below), whose sum is σ = 33368100480. Its totient is φ = 10898622072.

The previous prime is 22021222219. The next prime is 22021222231. The reversal of 22021222222 is 22222212022.

It is a self number, because there is not a number n which added to its sum of digits gives 22021222222.

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, 438229 + ... + 485887.

It is an arithmetic number, because the mean of its divisors is an integer number (2085506280).

Almost surely, 2^22021222222 is an apocalyptic number.

22021222222 is a deficient number, since it is larger than the sum of its proper divisors (11346878258).

22021222222 is a wasteful number, since it uses less digits than its factorization.

22021222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50007.

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

Adding to 22021222222 its reverse (22222212022), we get a palindrome (44243434244).

The spelling of 22021222222 in words is "twenty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred twenty-two".