2243155571 has 2 divisors, whose sum is σ = 2243155572. Its totient is φ = 2243155570.

The previous prime is 2243155547. The next prime is 2243155573. The reversal of 2243155571 is 1755513422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2243155571 - 2¹⁴ = 2243139187 is a prime.

Together with 2243155573, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2243155573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121577785 + 1121577786.

It is an arithmetic number, because the mean of its divisors is an integer number (1121577786).

Almost surely, 2^2243155571 is an apocalyptic number.

2243155571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243155571 is an equidigital number, since it uses as much as digits as its factorization.

2243155571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 2243155571 is about 47361.9633355713. The cubic root of 2243155571 is about 1309.0406454293.

Adding to 2243155571 its reverse (1755513422), we get a palindrome (3998668993).

The spelling of 2243155571 in words is "two billion, two hundred forty-three million, one hundred fifty-five thousand, five hundred seventy-one".