11142211 has 2 divisors, whose sum is σ = 11142212. Its totient is φ = 11142210.

The previous prime is 11142181. The next prime is 11142223. The reversal of 11142211 is 11224111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11142211 - 2¹⁵ = 11109443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11142191 and 11142200.

It is not a weakly prime, because it can be changed into another prime (11142251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571105 + 5571106.

It is an arithmetic number, because the mean of its divisors is an integer number (5571106).

Almost surely, 2^11142211 is an apocalyptic number.

11142211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11142211 is an equidigital number, since it uses as much as digits as its factorization.

11142211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16, while the sum is 13.

The square root of 11142211 is about 3337.9950569167. The cubic root of 11142211 is about 223.3523156559.

Adding to 11142211 its reverse (11224111), we get a palindrome (22366322).

The spelling of 11142211 in words is "eleven million, one hundred forty-two thousand, two hundred eleven".