222056397 has 40 divisors (see below), whose sum is σ = 354195072. Its totient is φ = 138153600.

The previous prime is 222056389. The next prime is 222056447. The reversal of 222056397 is 793650222.

222056397 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 563 + 97 = 666.

It is not a de Polignac number, because 222056397 - 2³ = 222056389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222056327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 179772 + ... + 181002.

Almost surely, 2^222056397 is an apocalyptic number.

222056397 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

222056397 is a deficient number, since it is larger than the sum of its proper divisors (132138675).

222056397 is a wasteful number, since it uses less digits than its factorization.

222056397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1382 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 222056397 is about 14901.5568649722. The cubic root of 222056397 is about 605.5561645734.

The spelling of 222056397 in words is "two hundred twenty-two million, fifty-six thousand, three hundred ninety-seven".