11222391 has 8 divisors (see below), whose sum is σ = 15479280. Its totient is φ = 7223552.

The previous prime is 11222357. The next prime is 11222417. The reversal of 11222391 is 19322211.

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

It is not a de Polignac number, because 11222391 - 2¹⁰ = 11221367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222291) 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, 64410 + ... + 64583.

It is an arithmetic number, because the mean of its divisors is an integer number (1934910).

Almost surely, 2^11222391 is an apocalyptic number.

11222391 is a deficient number, since it is larger than the sum of its proper divisors (4256889).

11222391 is a wasteful number, since it uses less digits than its factorization.

11222391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129025.

The product of its digits is 216, while the sum is 21.

The square root of 11222391 is about 3349.9837313038. The cubic root of 11222391 is about 223.8867877632.

The spelling of 11222391 in words is "eleven million, two hundred twenty-two thousand, three hundred ninety-one".