22546222 has 4 divisors (see below), whose sum is σ = 33819336. Its totient is φ = 11273110.

The previous prime is 22546219. The next prime is 22546231. The reversal of 22546222 is 22264522.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5636554 + ... + 5636557.

It is an arithmetic number, because the mean of its divisors is an integer number (8454834).

Almost surely, 2^22546222 is an apocalyptic number.

22546222 is a deficient number, since it is larger than the sum of its proper divisors (11273114).

22546222 is a wasteful number, since it uses less digits than its factorization.

22546222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273113.

The product of its digits is 3840, while the sum is 25.

The square root of 22546222 is about 4748.2862171525. The cubic root of 22546222 is about 282.5039945137.

The spelling of 22546222 in words is "twenty-two million, five hundred forty-six thousand, two hundred twenty-two".