2257122427 has 12 divisors (see below), whose sum is σ = 2668678896. Its totient is φ = 1902957840.

The previous prime is 2257122397. The next prime is 2257122473. The reversal of 2257122427 is 7242217522.

2257122427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2257122427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2257122392 and 2257122401.

It is not an unprimeable number, because it can be changed into a prime (2257126427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374583 + ... + 380560.

It is an arithmetic number, because the mean of its divisors is an integer number (222389908).

Almost surely, 2^2257122427 is an apocalyptic number.

2257122427 is a deficient number, since it is larger than the sum of its proper divisors (411556469).

2257122427 is an equidigital number, since it uses as much as digits as its factorization.

2257122427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755218 (or 755211 counting only the distinct ones).

The product of its digits is 31360, while the sum is 34.

The square root of 2257122427 is about 47509.1825545336. The cubic root of 2257122427 is about 1311.7519102826.

Adding to 2257122427 its reverse (7242217522), we get a palindrome (9499339949).

The spelling of 2257122427 in words is "two billion, two hundred fifty-seven million, one hundred twenty-two thousand, four hundred twenty-seven".