222102212 has 12 divisors (see below), whose sum is σ = 411542460. Its totient is φ = 104518656.

The previous prime is 222102211. The next prime is 222102233. The reversal of 222102212 is 212201222.

It can be written as a sum of positive squares in 2 ways, for example, as 90174016 + 131928196 = 9496^2 + 11486^2 .

It is not an unprimeable number, because it can be changed into a prime (222102211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1633037 + ... + 1633172.

It is an arithmetic number, because the mean of its divisors is an integer number (34295205).

Almost surely, 2^222102212 is an apocalyptic number.

It is an amenable number.

222102212 is a deficient number, since it is larger than the sum of its proper divisors (189440248).

222102212 is a wasteful number, since it uses less digits than its factorization.

222102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266230 (or 3266228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 222102212 is about 14903.0940411715. The cubic root of 222102212 is about 605.5978081202.

Adding to 222102212 its reverse (212201222), we get a palindrome (434303434).

The spelling of 222102212 in words is "two hundred twenty-two million, one hundred two thousand, two hundred twelve".