1321101227 has 2 divisors, whose sum is σ = 1321101228. Its totient is φ = 1321101226.

The previous prime is 1321101211. The next prime is 1321101241. The reversal of 1321101227 is 7221011231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1321101227 - 2⁴ = 1321101211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321101199 and 1321101208.

It is not a weakly prime, because it can be changed into another prime (1321101247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660550613 + 660550614.

It is an arithmetic number, because the mean of its divisors is an integer number (660550614).

Almost surely, 2^1321101227 is an apocalyptic number.

1321101227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321101227 is an equidigital number, since it uses as much as digits as its factorization.

1321101227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1321101227 is about 36346.9562274477. The cubic root of 1321101227 is about 1097.2662770617.

Adding to 1321101227 its reverse (7221011231), we get a palindrome (8542112458).

The spelling of 1321101227 in words is "one billion, three hundred twenty-one million, one hundred one thousand, two hundred twenty-seven".