22223156 has 24 divisors (see below), whose sum is σ = 40352256. Its totient is φ = 10697760.

The previous prime is 22223147. The next prime is 22223161. The reversal of 22223156 is 65132222.

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, 34025 + ... + 34671.

It is an arithmetic number, because the mean of its divisors is an integer number (1681344).

Almost surely, 2^22223156 is an apocalyptic number.

It is an amenable number.

22223156 is a deficient number, since it is larger than the sum of its proper divisors (18129100).

22223156 is a wasteful number, since it uses less digits than its factorization.

22223156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959 (or 957 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 22223156 is about 4714.1442489597. The cubic root of 22223156 is about 281.1481596055.

Adding to 22223156 its reverse (65132222), we get a palindrome (87355378).

The spelling of 22223156 in words is "twenty-two million, two hundred twenty-three thousand, one hundred fifty-six".