22142226 has 8 divisors (see below), whose sum is σ = 44284464. Its totient is φ = 7380740.

The previous prime is 22142213. The next prime is 22142231. The reversal of 22142226 is 62224122.

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

22142226 is an admirable 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, 1845180 + ... + 1845191.

It is an arithmetic number, because the mean of its divisors is an integer number (5535558).

Almost surely, 2^22142226 is an apocalyptic number.

22142226 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.

22142226 is a wasteful number, since it uses less digits than its factorization.

22142226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690376.

The product of its digits is 768, while the sum is 21.

The square root of 22142226 is about 4705.5526774227. The cubic root of 22142226 is about 280.8064590117.

Adding to 22142226 its reverse (62224122), we get a palindrome (84366348).

The spelling of 22142226 in words is "twenty-two million, one hundred forty-two thousand, two hundred twenty-six".