11522201 has 4 divisors (see below), whose sum is σ = 11529012. Its totient is φ = 11515392.

The previous prime is 11522197. The next prime is 11522219. The reversal of 11522201 is 10222511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7027801 + 4494400 = 2651^2 + 2120^2 .

It is a cyclic number.

It is not a de Polignac number, because 11522201 - 2² = 11522197 is a prime.

It is a super-2 number, since 2×11522201² = 265522231768802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11522501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301 + ... + 4973.

It is an arithmetic number, because the mean of its divisors is an integer number (2882253).

Almost surely, 2^11522201 is an apocalyptic number.

It is an amenable number.

11522201 is a deficient number, since it is larger than the sum of its proper divisors (6811).

11522201 is an equidigital number, since it uses as much as digits as its factorization.

11522201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 11522201 is about 3394.4367721317. The cubic root of 11522201 is about 225.8630294898.

Adding to 11522201 its reverse (10222511), we get a palindrome (21744712).

The spelling of 11522201 in words is "eleven million, five hundred twenty-two thousand, two hundred one".