12221434444 has 6 divisors (see below), whose sum is σ = 21387510284. Its totient is φ = 6110717220.

The previous prime is 12221434439. The next prime is 12221434481. The reversal of 12221434444 is 44443412221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527679302 + ... + 1527679309.

Almost surely, 2^12221434444 is an apocalyptic number.

It is an amenable number.

12221434444 is a deficient number, since it is larger than the sum of its proper divisors (9166075840).

12221434444 is a wasteful number, since it uses less digits than its factorization.

12221434444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055358615 (or 3055358613 counting only the distinct ones).

The product of its digits is 24576, while the sum is 31.

Adding to 12221434444 its reverse (44443412221), we get a palindrome (56664846665).

The spelling of 12221434444 in words is "twelve billion, two hundred twenty-one million, four hundred thirty-four thousand, four hundred forty-four".