8044911221 has 8 divisors (see below), whose sum is σ = 8310107064. Its totient is φ = 7782229440.

The previous prime is 8044911211. The next prime is 8044911223. The reversal of 8044911221 is 1221194408.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6510230596 + 1534680625 = 80686^2 + 39175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8044911221 - 2⁶ = 8044911157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8044911223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622010 + ... + 634811.

It is an arithmetic number, because the mean of its divisors is an integer number (1038763383).

Almost surely, 2^8044911221 is an apocalyptic number.

It is an amenable number.

8044911221 is a deficient number, since it is larger than the sum of its proper divisors (265195843).

8044911221 is a wasteful number, since it uses less digits than its factorization.

8044911221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257031.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 8044911221 is about 89693.4290848555. The cubic root of 8044911221 is about 2003.7356199775.

The spelling of 8044911221 in words is "eight billion, forty-four million, nine hundred eleven thousand, two hundred twenty-one".