2122222444 has 12 divisors (see below), whose sum is σ = 3755619000. Its totient is φ = 1049188448.

The previous prime is 2122222441. The next prime is 2122222469. The reversal of 2122222444 is 4442222212.

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

It is not an unprimeable number, because it can be changed into a prime (2122222441) 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, 2980294 + ... + 2981005.

It is an arithmetic number, because the mean of its divisors is an integer number (312968250).

Almost surely, 2^2122222444 is an apocalyptic number.

It is an amenable number.

2122222444 is a deficient number, since it is larger than the sum of its proper divisors (1633396556).

2122222444 is a wasteful number, since it uses less digits than its factorization.

2122222444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961392 (or 5961390 counting only the distinct ones).

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

The square root of 2122222444 is about 46067.5856107090. The cubic root of 2122222444 is about 1285.0804037564.

Adding to 2122222444 its reverse (4442222212), we get a palindrome (6564444656).

The spelling of 2122222444 in words is "two billion, one hundred twenty-two million, two hundred twenty-two thousand, four hundred forty-four".