4431221297 has 16 divisors (see below), whose sum is σ = 4560624000. Its totient is φ = 4303708032.

The previous prime is 4431221243. The next prime is 4431221299. The reversal of 4431221297 is 7921221344.

4431221297 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4431221297 - 2¹⁶ = 4431155761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4431221299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3622628 + ... + 3623850.

It is an arithmetic number, because the mean of its divisors is an integer number (285039000).

Almost surely, 2^4431221297 is an apocalyptic number.

It is an amenable number.

4431221297 is a deficient number, since it is larger than the sum of its proper divisors (129402703).

4431221297 is a wasteful number, since it uses less digits than its factorization.

4431221297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912.

The product of its digits is 24192, while the sum is 35.

The square root of 4431221297 is about 66567.4191853642. The cubic root of 4431221297 is about 1642.5092088349.

The spelling of 4431221297 in words is "four billion, four hundred thirty-one million, two hundred twenty-one thousand, two hundred ninety-seven".