222512222 has 8 divisors (see below), whose sum is σ = 334130400. Its totient is φ = 111135424.

The previous prime is 222512221. The next prime is 222512231. The reversal of 222512222 is 222215222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 222512194 and 222512203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222512221) 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 3 ways as a sum of consecutive naturals, for example, 58022 + ... + 61737.

It is an arithmetic number, because the mean of its divisors is an integer number (41766300).

Almost surely, 2^222512222 is an apocalyptic number.

222512222 is a deficient number, since it is larger than the sum of its proper divisors (111618178).

222512222 is a wasteful number, since it uses less digits than its factorization.

222512222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120690.

The product of its digits is 640, while the sum is 20.

The square root of 222512222 is about 14916.8435669213. The cubic root of 222512222 is about 605.9702320298.

Adding to 222512222 its reverse (222215222), we get a palindrome (444727444).

The spelling of 222512222 in words is "two hundred twenty-two million, five hundred twelve thousand, two hundred twenty-two".