222172293 has 16 divisors (see below), whose sum is σ = 339431040. Its totient is φ = 126624576.

The previous prime is 222172289. The next prime is 222172297. The reversal of 222172293 is 392271222.

It is an interprime number because it is at equal distance from previous prime (222172289) and next prime (222172297).

It is not a de Polignac number, because 222172293 - 2² = 222172289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222172293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222172297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5430 + ... + 21767.

It is an arithmetic number, because the mean of its divisors is an integer number (21214440).

Almost surely, 2^222172293 is an apocalyptic number.

It is an amenable number.

222172293 is a deficient number, since it is larger than the sum of its proper divisors (117258747).

222172293 is a wasteful number, since it uses less digits than its factorization.

222172293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27596.

The product of its digits is 6048, while the sum is 30.

The square root of 222172293 is about 14905.4450788965. The cubic root of 222172293 is about 605.6614971706.

The spelling of 222172293 in words is "two hundred twenty-two million, one hundred seventy-two thousand, two hundred ninety-three".