1222044444 has 18 divisors (see below), whose sum is σ = 3089056880. Its totient is φ = 407348136.

The previous prime is 1222044437. The next prime is 1222044463. The reversal of 1222044444 is 4444402221.

1222044444 is a `hidden beast` number, since 12 + 2 + 204 + 4 + 444 = 666.

1222044444 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1222044444² = 2986785246222538272, which contains 22 as substring.

1222044444 is a modest number, since divided by 44444 gives 12220 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16972804 + ... + 16972875.

Almost surely, 2^1222044444 is an apocalyptic number.

It is an amenable number.

1222044444 is an abundant number, since it is smaller than the sum of its proper divisors (1867012436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222044444 is a wasteful number, since it uses less digits than its factorization.

1222044444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33945689 (or 33945684 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 1222044444 is about 34957.7522732798. The cubic root of 1222044444 is about 1069.1262684167.

Adding to 1222044444 its reverse (4444402221), we get a palindrome (5666446665).

The spelling of 1222044444 in words is "one billion, two hundred twenty-two million, forty-four thousand, four hundred forty-four".