11122287 has 8 divisors (see below), whose sum is σ = 16177920. Its totient is φ = 6740760.

The previous prime is 11122259. The next prime is 11122289. The reversal of 11122287 is 78222111.

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

It is not a de Polignac number, because 11122287 - 2¹⁴ = 11105903 is a prime.

It is a super-2 number, since 2×11122287² = 247410536220738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122289) 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, 168487 + ... + 168552.

It is an arithmetic number, because the mean of its divisors is an integer number (2022240).

Almost surely, 2^11122287 is an apocalyptic number.

11122287 is a deficient number, since it is larger than the sum of its proper divisors (5055633).

11122287 is a wasteful number, since it uses less digits than its factorization.

11122287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337053.

The product of its digits is 448, while the sum is 24.

The square root of 11122287 is about 3335.0092953394. The cubic root of 11122287 is about 223.2191067070.

Adding to 11122287 its reverse (78222111), we get a palindrome (89344398).

The spelling of 11122287 in words is "eleven million, one hundred twenty-two thousand, two hundred eighty-seven".