256112222 has 16 divisors (see below), whose sum is σ = 402786432. Its totient is φ = 121903320.

The previous prime is 256112203. The next prime is 256112231. The reversal of 256112222 is 222211652.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3488 + ... + 22899.

It is an arithmetic number, because the mean of its divisors is an integer number (25174152).

Almost surely, 2^256112222 is an apocalyptic number.

256112222 is a deficient number, since it is larger than the sum of its proper divisors (146674210).

256112222 is a wasteful number, since it uses less digits than its factorization.

256112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26623.

The product of its digits is 960, while the sum is 23.

The square root of 256112222 is about 16003.5065532526. The cubic root of 256112222 is about 635.0531891710.

Adding to 256112222 its reverse (222211652), we get a palindrome (478323874).

The spelling of 256112222 in words is "two hundred fifty-six million, one hundred twelve thousand, two hundred twenty-two".