222006591 has 12 divisors (see below), whose sum is σ = 320848632. Its totient is φ = 147924816.

The previous prime is 222006581. The next prime is 222006607. The reversal of 222006591 is 195600222.

222006591 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 0 + 659 + 1 = 666.

It is not a de Polignac number, because 222006591 - 2¹¹ = 222004543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222006581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14620 + ... + 25646.

It is an arithmetic number, because the mean of its divisors is an integer number (26737386).

Almost surely, 2^222006591 is an apocalyptic number.

222006591 is a deficient number, since it is larger than the sum of its proper divisors (98842041).

222006591 is a wasteful number, since it uses less digits than its factorization.

222006591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13270 (or 13267 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 222006591 is about 14899.8856035877. The cubic root of 222006591 is about 605.5108869083.

The spelling of 222006591 in words is "two hundred twenty-two million, six thousand, five hundred ninety-one".