11392221 has 8 divisors (see below), whose sum is σ = 15679744. Its totient is φ = 7349760.

The previous prime is 11392217. The next prime is 11392237. The reversal of 11392221 is 12229311.

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

It is not a de Polignac number, because 11392221 - 2² = 11392217 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 (11392201) 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, 61156 + ... + 61341.

It is an arithmetic number, because the mean of its divisors is an integer number (1959968).

Almost surely, 2^11392221 is an apocalyptic number.

It is an amenable number.

11392221 is a deficient number, since it is larger than the sum of its proper divisors (4287523).

11392221 is a wasteful number, since it uses less digits than its factorization.

11392221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122531.

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

The square root of 11392221 is about 3375.2364361627. The cubic root of 11392221 is about 225.0105081512.

The spelling of 11392221 in words is "eleven million, three hundred ninety-two thousand, two hundred twenty-one".