222141212 has 6 divisors (see below), whose sum is σ = 388747128. Its totient is φ = 111070604.

The previous prime is 222141211. The next prime is 222141251. The reversal of 222141212 is 212141222.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222141211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27767648 + ... + 27767655.

It is an arithmetic number, because the mean of its divisors is an integer number (64791188).

Almost surely, 2^222141212 is an apocalyptic number.

It is an amenable number.

222141212 is a deficient number, since it is larger than the sum of its proper divisors (166605916).

222141212 is a wasteful number, since it uses less digits than its factorization.

222141212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55535307 (or 55535305 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 222141212 is about 14904.4024368641. The cubic root of 222141212 is about 605.6332526602.

Adding to 222141212 its reverse (212141222), we get a palindrome (434282434).

The spelling of 222141212 in words is "two hundred twenty-two million, one hundred forty-one thousand, two hundred twelve".