1211244227 has 2 divisors, whose sum is σ = 1211244228. Its totient is φ = 1211244226.

The previous prime is 1211244211. The next prime is 1211244241. The reversal of 1211244227 is 7224421121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7224421121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1211244227 - 2⁴ = 1211244211 is a prime.

It is a super-2 number, since 2×1211244227² = 2934225154881655058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211244196 and 1211244205.

It is not a weakly prime, because it can be changed into another prime (1211244277) 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, 605622113 + 605622114.

It is an arithmetic number, because the mean of its divisors is an integer number (605622114).

Almost surely, 2^1211244227 is an apocalyptic number.

1211244227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211244227 is an equidigital number, since it uses as much as digits as its factorization.

1211244227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1792, while the sum is 26.

The square root of 1211244227 is about 34802.9341722792. The cubic root of 1211244227 is about 1065.9673598746.

Adding to 1211244227 its reverse (7224421121), we get a palindrome (8435665348).

The spelling of 1211244227 in words is "one billion, two hundred eleven million, two hundred forty-four thousand, two hundred twenty-seven".