2266225991 has 2 divisors, whose sum is σ = 2266225992. Its totient is φ = 2266225990.

The previous prime is 2266225933. The next prime is 2266225999. The reversal of 2266225991 is 1995226622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2266225991 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2266225999) 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 as a sum of consecutive naturals, namely, 1133112995 + 1133112996.

It is an arithmetic number, because the mean of its divisors is an integer number (1133112996).

Almost surely, 2^2266225991 is an apocalyptic number.

2266225991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266225991 is an equidigital number, since it uses as much as digits as its factorization.

2266225991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 44.

The square root of 2266225991 is about 47604.8946117939. The cubic root of 2266225991 is about 1313.5130906020.

The spelling of 2266225991 in words is "two billion, two hundred sixty-six million, two hundred twenty-five thousand, nine hundred ninety-one".