2222156 has 12 divisors (see below), whose sum is σ = 3900792. Its totient is φ = 1107648.

The previous prime is 2222147. The next prime is 2222167. The reversal of 2222156 is 6512222.

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, 1091 + ... + 2373.

It is an arithmetic number, because the mean of its divisors is an integer number (325066).

2^2222156 is an apocalyptic number.

It is an amenable number.

2222156 is a deficient number, since it is larger than the sum of its proper divisors (1678636).

2222156 is a wasteful number, since it uses less digits than its factorization.

2222156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1718 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 2222156 is about 1490.6897732258. The cubic root of 2222156 is about 130.4942917699.

Adding to 2222156 its reverse (6512222), we get a palindrome (8734378).

The spelling of 2222156 in words is "two million, two hundred twenty-two thousand, one hundred fifty-six".