22299222 has 16 divisors (see below), whose sum is σ = 48652992. Its totient is φ = 6757320.

The previous prime is 22299187. The next prime is 22299229.

22299222 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 22299222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22299229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168868 + ... + 168999.

It is an arithmetic number, because the mean of its divisors is an integer number (3040812).

Almost surely, 2^22299222 is an apocalyptic number.

22299222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22299222 is an abundant number, since it is smaller than the sum of its proper divisors (26353770).

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

22299222 is a wasteful number, since it uses less digits than its factorization.

22299222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337883.

The product of its digits is 5184, while the sum is 30.

The square root of 22299222 is about 4722.2052051981. The cubic root of 22299222 is about 281.4685680753.

The spelling of 22299222 in words is "twenty-two million, two hundred ninety-nine thousand, two hundred twenty-two".