2228510491 has 2 divisors, whose sum is σ = 2228510492. Its totient is φ = 2228510490.

The previous prime is 2228510489. The next prime is 2228510563. The reversal of 2228510491 is 1940158222.

2228510491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2228510491 - 2¹ = 2228510489 is a prime.

It is a super-2 number, since 2×2228510491² = 9932518016994122162, which contains 22 as substring.

Together with 2228510489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2228510461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114255245 + 1114255246.

It is an arithmetic number, because the mean of its divisors is an integer number (1114255246).

Almost surely, 2^2228510491 is an apocalyptic number.

2228510491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228510491 is an equidigital number, since it uses as much as digits as its factorization.

2228510491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2228510491 is about 47207.1021245744. The cubic root of 2228510491 is about 1306.1856081870.

The spelling of 2228510491 in words is "two billion, two hundred twenty-eight million, five hundred ten thousand, four hundred ninety-one".