1002211271 has 2 divisors, whose sum is σ = 1002211272. Its totient is φ = 1002211270.

The previous prime is 1002211253. The next prime is 1002211279. The reversal of 1002211271 is 1721122001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1002211271 - 2¹⁰ = 1002210247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002211279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501105635 + 501105636.

It is an arithmetic number, because the mean of its divisors is an integer number (501105636).

Almost surely, 2^1002211271 is an apocalyptic number.

1002211271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002211271 is an equidigital number, since it uses as much as digits as its factorization.

1002211271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1002211271 is about 31657.7205591306. The cubic root of 1002211271 is about 1000.7365476976.

Adding to 1002211271 its reverse (1721122001), we get a palindrome (2723333272).

The spelling of 1002211271 in words is "one billion, two million, two hundred eleven thousand, two hundred seventy-one".