22361222 has 16 divisors (see below), whose sum is σ = 38247552. Its totient is φ = 9713280.

The previous prime is 22361219. The next prime is 22361263. The reversal of 22361222 is 22216322.

It is a junction number, because it is equal to n+sod(n) for n = 22361194 and 22361203.

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 in 7 ways as a sum of consecutive naturals, for example, 24854 + ... + 25737.

It is an arithmetic number, because the mean of its divisors is an integer number (2390472).

Almost surely, 2^22361222 is an apocalyptic number.

22361222 is a deficient number, since it is larger than the sum of its proper divisors (15886330).

22361222 is a wasteful number, since it uses less digits than its factorization.

22361222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50623.

The product of its digits is 576, while the sum is 20.

The square root of 22361222 is about 4728.7653779819. The cubic root of 22361222 is about 281.7291885687.

Adding to 22361222 its reverse (22216322), we get a palindrome (44577544).

The spelling of 22361222 in words is "twenty-two million, three hundred sixty-one thousand, two hundred twenty-two".