2261427211 has 2 divisors, whose sum is σ = 2261427212. Its totient is φ = 2261427210.

The previous prime is 2261427199. The next prime is 2261427239. The reversal of 2261427211 is 1127241622.

It is an a-pointer prime, because the next prime (2261427239) can be obtained adding 2261427211 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2261427211 - 2⁷ = 2261427083 is a prime.

It is a super-2 number, since 2×2261427211² = 10228106061302477042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261427211.

It is not a weakly prime, because it can be changed into another prime (2261427271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130713605 + 1130713606.

It is an arithmetic number, because the mean of its divisors is an integer number (1130713606).

Almost surely, 2^2261427211 is an apocalyptic number.

2261427211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261427211 is an equidigital number, since it uses as much as digits as its factorization.

2261427211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 2261427211 is about 47554.4657314116. The cubic root of 2261427211 is about 1312.5853051252.

Adding to 2261427211 its reverse (1127241622), we get a palindrome (3388668833).

The spelling of 2261427211 in words is "two billion, two hundred sixty-one million, four hundred twenty-seven thousand, two hundred eleven".