2422475221 has 4 divisors (see below), whose sum is σ = 2435859244. Its totient is φ = 2409091200.

The previous prime is 2422475173. The next prime is 2422475257. The reversal of 2422475221 is 1225742242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 81270225 + 2341204996 = 9015^2 + 48386^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422475221 - 2⁷ = 2422475093 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 (2422475261) 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, 6691740 + ... + 6692101.

It is an arithmetic number, because the mean of its divisors is an integer number (608964811).

Almost surely, 2^2422475221 is an apocalyptic number.

It is an amenable number.

2422475221 is a deficient number, since it is larger than the sum of its proper divisors (13384023).

2422475221 is a wasteful number, since it uses less digits than its factorization.

2422475221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13384022.

The product of its digits is 17920, while the sum is 31.

The square root of 2422475221 is about 49218.6470862416. The cubic root of 2422475221 is about 1343.0322697311.

The spelling of 2422475221 in words is "two billion, four hundred twenty-two million, four hundred seventy-five thousand, two hundred twenty-one".