2222212444 has 6 divisors (see below), whose sum is σ = 3888871784. Its totient is φ = 1111106220.

The previous prime is 2222212441. The next prime is 2222212549. The reversal of 2222212444 is 4442122222.

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 (2222212441) 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 as a sum of consecutive naturals, namely, 277776552 + ... + 277776559.

Almost surely, 2^2222212444 is an apocalyptic number.

It is an amenable number.

2222212444 is a deficient number, since it is larger than the sum of its proper divisors (1666659340).

2222212444 is a wasteful number, since it uses less digits than its factorization.

2222212444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555553115 (or 555553113 counting only the distinct ones).

The product of its digits is 4096, while the sum is 25.

The square root of 2222212444 is about 47140.3483652805. The cubic root of 2222212444 is about 1304.9539663645.

Adding to 2222212444 its reverse (4442122222), we get a palindrome (6664334666).

The spelling of 2222212444 in words is "two billion, two hundred twenty-two million, two hundred twelve thousand, four hundred forty-four".