2162570221 has 8 divisors (see below), whose sum is σ = 2616891840. Its totient is φ = 1744594368.

The previous prime is 2162570219. The next prime is 2162570243. The reversal of 2162570221 is 1220752612.

2162570221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2162570221 - 2¹ = 2162570219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2162570221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162570521) 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, 9086311 + ... + 9086548.

It is an arithmetic number, because the mean of its divisors is an integer number (327111480).

Almost surely, 2^2162570221 is an apocalyptic number.

It is an amenable number.

2162570221 is a deficient number, since it is larger than the sum of its proper divisors (454321619).

2162570221 is a wasteful number, since it uses less digits than its factorization.

2162570221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18172883.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2162570221 is about 46503.4431090860. The cubic root of 2162570221 is about 1293.1733305373.

The spelling of 2162570221 in words is "two billion, one hundred sixty-two million, five hundred seventy thousand, two hundred twenty-one".