11396221 has 2 divisors, whose sum is σ = 11396222. Its totient is φ = 11396220.

The previous prime is 11396213. The next prime is 11396227. The reversal of 11396221 is 12269311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8791225 + 2604996 = 2965^2 + 1614^2 .

It is a cyclic number.

It is not a de Polignac number, because 11396221 - 2³ = 11396213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11396227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5698110 + 5698111.

It is an arithmetic number, because the mean of its divisors is an integer number (5698111).

Almost surely, 2^11396221 is an apocalyptic number.

It is an amenable number.

11396221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11396221 is an equidigital number, since it uses as much as digits as its factorization.

11396221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 11396221 is about 3375.8289352395. The cubic root of 11396221 is about 225.0368400583.

The spelling of 11396221 in words is "eleven million, three hundred ninety-six thousand, two hundred twenty-one".