2271226257 has 8 divisors (see below), whose sum is σ = 3364779680. Its totient is φ = 1514150820.

The previous prime is 2271226249. The next prime is 2271226271. The reversal of 2271226257 is 7526221722.

2271226257 is a `hidden beast` number, since 2 + 2 + 7 + 1 + 22 + 625 + 7 = 666.

It is not a de Polignac number, because 2271226257 - 2³ = 2271226249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2271226247) 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, 42059719 + ... + 42059772.

It is an arithmetic number, because the mean of its divisors is an integer number (420597460).

Almost surely, 2^2271226257 is an apocalyptic number.

2271226257 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2271226257 is a deficient number, since it is larger than the sum of its proper divisors (1093553423).

2271226257 is an equidigital number, since it uses as much as digits as its factorization.

2271226257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84119500 (or 84119494 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 2271226257 is about 47657.3840763423. The cubic root of 2271226257 is about 1314.4784386065.

Adding to 2271226257 its reverse (7526221722), we get a palindrome (9797447979).

The spelling of 2271226257 in words is "two billion, two hundred seventy-one million, two hundred twenty-six thousand, two hundred fifty-seven".