11221151 has 8 divisors (see below), whose sum is σ = 11679360. Its totient is φ = 10771992.

The previous prime is 11221141. The next prime is 11221159. The reversal of 11221151 is 15112211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11221151 - 2⁶ = 11221087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (1459920).

Almost surely, 2^11221151 is an apocalyptic number.

11221151 is a deficient number, since it is larger than the sum of its proper divisors (458209).

11221151 is an equidigital number, since it uses as much as digits as its factorization.

11221151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525.

The product of its digits is 20, while the sum is 14.

The square root of 11221151 is about 3349.7986506654. The cubic root of 11221151 is about 223.8785414563.

Adding to 11221151 its reverse (15112211), we get a palindrome (26333362).

The spelling of 11221151 in words is "eleven million, two hundred twenty-one thousand, one hundred fifty-one".