1334645221 has 24 divisors (see below), whose sum is σ = 1708663680. Its totient is φ = 1019543616.

The previous prime is 1334645183. The next prime is 1334645237. The reversal of 1334645221 is 1225464331.

It is not a de Polignac number, because 1334645221 - 2⁹ = 1334644709 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 (1334645261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14856 + ... + 53758.

It is an arithmetic number, because the mean of its divisors is an integer number (71194320).

Almost surely, 2^1334645221 is an apocalyptic number.

It is an amenable number.

1334645221 is a deficient number, since it is larger than the sum of its proper divisors (374018459).

1334645221 is a wasteful number, since it uses less digits than its factorization.

1334645221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38965 (or 38952 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 1334645221 is about 36532.7965121752. The cubic root of 1334645221 is about 1101.0032777745.

The spelling of 1334645221 in words is "one billion, three hundred thirty-four million, six hundred forty-five thousand, two hundred twenty-one".