11215201 has 2 divisors, whose sum is σ = 11215202. Its totient is φ = 11215200.

The previous prime is 11215177. The next prime is 11215207. The reversal of 11215201 is 10251211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10732176 + 483025 = 3276^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 11215201 - 2¹⁹ = 10690913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11215207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607600 + 5607601.

It is an arithmetic number, because the mean of its divisors is an integer number (5607601).

Almost surely, 2^11215201 is an apocalyptic number.

It is an amenable number.

11215201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11215201 is an equidigital number, since it uses as much as digits as its factorization.

11215201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 11215201 is about 3348.9104198231. The cubic root of 11215201 is about 223.8389640298.

Adding to 11215201 its reverse (10251211), we get a palindrome (21466412).

The spelling of 11215201 in words is "eleven million, two hundred fifteen thousand, two hundred one".