2222212 has 12 divisors (see below), whose sum is σ = 4023180. Its totient is φ = 1072736.

The previous prime is 2222203. The next prime is 2222219. The reversal of 2222212 is 2122222.

It can be written as a sum of positive squares in 2 ways, for example, as 495616 + 1726596 = 704^2 + 1314^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2222192 and 2222201.

It is not an unprimeable number, because it can be changed into a prime (2222219) 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, 9463 + ... + 9694.

It is an arithmetic number, because the mean of its divisors is an integer number (335265).

2^2222212 is an apocalyptic number.

It is an amenable number.

2222212 is a deficient number, since it is larger than the sum of its proper divisors (1800968).

2222212 is a wasteful number, since it uses less digits than its factorization.

2222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19190 (or 19188 counting only the distinct ones).

The product of its digits is 64, while the sum is 13.

The square root of 2222212 is about 1490.7085563584. The cubic root of 2222212 is about 130.4953879454.

Adding to 2222212 its reverse (2122222), we get a palindrome (4344434).

The spelling of 2222212 in words is "two million, two hundred twenty-two thousand, two hundred twelve".