2422720231 has 4 divisors (see below), whose sum is σ = 2423750472. Its totient is φ = 2421689992.

The previous prime is 2422720129. The next prime is 2422720247. The reversal of 2422720231 is 1320272242.

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

It is a cyclic number.

It is not a de Polignac number, because 2422720231 - 2²⁵ = 2389165799 is a prime.

It is a super-2 number, since 2×2422720231² = 11739146635393386722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2422720196 and 2422720205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422720271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 511585 + ... + 516298.

It is an arithmetic number, because the mean of its divisors is an integer number (605937618).

Almost surely, 2^2422720231 is an apocalyptic number.

2422720231 is a deficient number, since it is larger than the sum of its proper divisors (1030241).

2422720231 is a wasteful number, since it uses less digits than its factorization.

2422720231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030240.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 2422720231 is about 49221.1360189909. The cubic root of 2422720231 is about 1343.0775464575.

Adding to 2422720231 its reverse (1320272242), we get a palindrome (3742992473).

The spelling of 2422720231 in words is "two billion, four hundred twenty-two million, seven hundred twenty thousand, two hundred thirty-one".