22209901222 has 4 divisors (see below), whose sum is σ = 33314851836. Its totient is φ = 11104950610.

The previous prime is 22209901199. The next prime is 22209901229. The reversal of 22209901222 is 22210990222.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22209901229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5552475304 + ... + 5552475307.

It is an arithmetic number, because the mean of its divisors is an integer number (8328712959).

Almost surely, 2^22209901222 is an apocalyptic number.

22209901222 is a deficient number, since it is larger than the sum of its proper divisors (11104950614).

22209901222 is a wasteful number, since it uses less digits than its factorization.

22209901222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104950613.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 22209901222 in words is "twenty-two billion, two hundred nine million, nine hundred one thousand, two hundred twenty-two".