2242047991 has 2 divisors, whose sum is σ = 2242047992. Its totient is φ = 2242047990.

The previous prime is 2242047989. The next prime is 2242048007. The reversal of 2242047991 is 1997402422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2242047991 - 2¹ = 2242047989 is a prime.

Together with 2242047989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2242047931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121023995 + 1121023996.

It is an arithmetic number, because the mean of its divisors is an integer number (1121023996).

Almost surely, 2^2242047991 is an apocalyptic number.

2242047991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242047991 is an equidigital number, since it uses as much as digits as its factorization.

2242047991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2242047991 is about 47350.2691755813. The cubic root of 2242047991 is about 1308.8251594191.

The spelling of 2242047991 in words is "two billion, two hundred forty-two million, forty-seven thousand, nine hundred ninety-one".