22155522222 has 8 divisors (see below), whose sum is σ = 44311044456. Its totient is φ = 7385174072.

The previous prime is 22155522199. The next prime is 22155522247. The reversal of 22155522222 is 22222555122.

It is a sphenic number, since it is the product of 3 distinct primes.

22155522222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 22155522222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846293513 + ... + 1846293524.

It is an arithmetic number, because the mean of its divisors is an integer number (5538880557).

Almost surely, 2^22155522222 is an apocalyptic number.

22155522222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22155522222 is a wasteful number, since it uses less digits than its factorization.

22155522222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692587042.

The product of its digits is 16000, while the sum is 30.

The spelling of 22155522222 in words is "twenty-two billion, one hundred fifty-five million, five hundred twenty-two thousand, two hundred twenty-two".