22047222 has 8 divisors (see below), whose sum is σ = 44094456. Its totient is φ = 7349072.

The previous prime is 22047209. The next prime is 22047229. The reversal of 22047222 is 22274022.

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

22047222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22047229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837263 + ... + 1837274.

It is an arithmetic number, because the mean of its divisors is an integer number (5511807).

Almost surely, 2^22047222 is an apocalyptic number.

22047222 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.

22047222 is a wasteful number, since it uses less digits than its factorization.

22047222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674542.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 22047222 is about 4695.4469435827. The cubic root of 22047222 is about 280.4042714633.

The spelling of 22047222 in words is "twenty-two million, forty-seven thousand, two hundred twenty-two".