222232211 has 24 divisors (see below), whose sum is σ = 248234112. Its totient is φ = 198201600.

The previous prime is 222232193. The next prime is 222232229. The reversal of 222232211 is 112232222.

It is an interprime number because it is at equal distance from previous prime (222232193) and next prime (222232229).

It is not a de Polignac number, because 222232211 - 2⁶ = 222232147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 222232211.

It is not an unprimeable number, because it can be changed into a prime (222232261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 996446 + ... + 996668.

It is an arithmetic number, because the mean of its divisors is an integer number (10343088).

Almost surely, 2^222232211 is an apocalyptic number.

222232211 is a deficient number, since it is larger than the sum of its proper divisors (26001901).

222232211 is a wasteful number, since it uses less digits than its factorization.

222232211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 332 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 222232211 is about 14907.4548800256. The cubic root of 222232211 is about 605.7159395483.

Adding to 222232211 its reverse (112232222), we get a palindrome (334464433).

The spelling of 222232211 in words is "two hundred twenty-two million, two hundred thirty-two thousand, two hundred eleven".