11299221 has 12 divisors (see below), whose sum is σ = 16848000. Its totient is φ = 7289640.

The previous prime is 11299217. The next prime is 11299247. The reversal of 11299221 is 12299211.

11299221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11299221 - 2² = 11299217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11291221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19971 + ... + 20528.

It is an arithmetic number, because the mean of its divisors is an integer number (1404000).

Almost surely, 2^11299221 is an apocalyptic number.

It is an amenable number.

11299221 is a deficient number, since it is larger than the sum of its proper divisors (5548779).

11299221 is a wasteful number, since it uses less digits than its factorization.

11299221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40536 (or 40533 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 11299221 is about 3361.4313915355. The cubic root of 11299221 is about 224.3965459352.

The spelling of 11299221 in words is "eleven million, two hundred ninety-nine thousand, two hundred twenty-one".