222309697 has 16 divisors (see below), whose sum is σ = 246281472. Its totient is φ = 199598080.

The previous prime is 222309677. The next prime is 222309707. The reversal of 222309697 is 796903222.

It is a cyclic number.

It is not a de Polignac number, because 222309697 - 2⁷ = 222309569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222309617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250188 + ... + 251074.

It is an arithmetic number, because the mean of its divisors is an integer number (15392592).

Almost surely, 2^222309697 is an apocalyptic number.

It is an amenable number.

222309697 is a deficient number, since it is larger than the sum of its proper divisors (23971775).

222309697 is a wasteful number, since it uses less digits than its factorization.

222309697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 222309697 is about 14910.0535545651. The cubic root of 222309697 is about 605.7863299615.

The spelling of 222309697 in words is "two hundred twenty-two million, three hundred nine thousand, six hundred ninety-seven".