22051156 has 12 divisors (see below), whose sum is σ = 38703168. Its totient is φ = 10993112.

The previous prime is 22051147. The next prime is 22051171. The reversal of 22051156 is 65115022.

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 3 ways as a sum of consecutive naturals, for example, 6556 + ... + 9331.

It is an arithmetic number, because the mean of its divisors is an integer number (3225264).

Almost surely, 2^22051156 is an apocalyptic number.

It is an amenable number.

22051156 is a deficient number, since it is larger than the sum of its proper divisors (16652012).

22051156 is a wasteful number, since it uses less digits than its factorization.

22051156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16238 (or 16236 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 22051156 is about 4695.8658413545. The cubic root of 22051156 is about 280.4209484669.

Adding to 22051156 its reverse (65115022), we get a palindrome (87166178).

The spelling of 22051156 in words is "twenty-two million, fifty-one thousand, one hundred fifty-six".