1044412221 has 16 divisors (see below), whose sum is σ = 1538573184. Its totient is φ = 626824704.

The previous prime is 1044412217. The next prime is 1044412261. The reversal of 1044412221 is 1222144401.

It is not a de Polignac number, because 1044412221 - 2² = 1044412217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044412211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444016 + ... + 446361.

It is an arithmetic number, because the mean of its divisors is an integer number (96160824).

Almost surely, 2^1044412221 is an apocalyptic number.

It is an amenable number.

1044412221 is a deficient number, since it is larger than the sum of its proper divisors (494160963).

1044412221 is a wasteful number, since it uses less digits than its factorization.

1044412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890420.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1044412221 is about 32317.3671730851. The cubic root of 1044412221 is about 1014.5901654549.

Adding to 1044412221 its reverse (1222144401), we get a palindrome (2266556622).

The spelling of 1044412221 in words is "one billion, forty-four million, four hundred twelve thousand, two hundred twenty-one".