2722225161 has 8 divisors (see below), whose sum is σ = 3727731904. Its totient is φ = 1765767600.

The previous prime is 2722225159. The next prime is 2722225241. The reversal of 2722225161 is 1615222272.

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

It is not a de Polignac number, because 2722225161 - 2¹ = 2722225159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2722225141) 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, 12262165 + ... + 12262386.

It is an arithmetic number, because the mean of its divisors is an integer number (465966488).

Almost surely, 2^2722225161 is an apocalyptic number.

It is an amenable number.

2722225161 is a deficient number, since it is larger than the sum of its proper divisors (1005506743).

2722225161 is a wasteful number, since it uses less digits than its factorization.

2722225161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24524591.

The product of its digits is 6720, while the sum is 30.

The square root of 2722225161 is about 52174.9476377313. The cubic root of 2722225161 is about 1396.2869571607.

The spelling of 2722225161 in words is "two billion, seven hundred twenty-two million, two hundred twenty-five thousand, one hundred sixty-one".