11542211 has 2 divisors, whose sum is σ = 11542212. Its totient is φ = 11542210.

The previous prime is 11542207. The next prime is 11542217. The reversal of 11542211 is 11224511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11542211 - 2² = 11542207 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11542211.

It is not a weakly prime, because it can be changed into another prime (11542217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771105 + 5771106.

It is an arithmetic number, because the mean of its divisors is an integer number (5771106).

Almost surely, 2^11542211 is an apocalyptic number.

11542211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11542211 is an equidigital number, since it uses as much as digits as its factorization.

11542211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80, while the sum is 17.

The square root of 11542211 is about 3397.3829633999. The cubic root of 11542211 is about 225.9937020199.

Adding to 11542211 its reverse (11224511), we get a palindrome (22766722).

The spelling of 11542211 in words is "eleven million, five hundred forty-two thousand, two hundred eleven".