4481570221 has 4 divisors (see below), whose sum is σ = 4493781952. Its totient is φ = 4469358492.

The previous prime is 4481570213. The next prime is 4481570251. The reversal of 4481570221 is 1220751844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4481570221 - 2³ = 4481570213 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 (4481570201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6105315 + ... + 6106048.

It is an arithmetic number, because the mean of its divisors is an integer number (1123445488).

Almost surely, 2^4481570221 is an apocalyptic number.

It is an amenable number.

4481570221 is a deficient number, since it is larger than the sum of its proper divisors (12211731).

4481570221 is a wasteful number, since it uses less digits than its factorization.

4481570221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12211730.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 4481570221 is about 66944.5309267307. The cubic root of 4481570221 is about 1648.7066964953.

The spelling of 4481570221 in words is "four billion, four hundred eighty-one million, five hundred seventy thousand, two hundred twenty-one".