11222487 has 6 divisors (see below), whose sum is σ = 16210272. Its totient is φ = 7481652.

The previous prime is 11222447. The next prime is 11222489. The reversal of 11222487 is 78422211.

It is not a de Polignac number, because 11222487 - 2⁶ = 11222423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11222487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623463 + ... + 623480.

It is an arithmetic number, because the mean of its divisors is an integer number (2701712).

Almost surely, 2^11222487 is an apocalyptic number.

11222487 is a deficient number, since it is larger than the sum of its proper divisors (4987785).

11222487 is a wasteful number, since it uses less digits than its factorization.

11222487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246949 (or 1246946 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 11222487 is about 3349.9980597009. The cubic root of 11222487 is about 223.8874261616.

Adding to 11222487 its reverse (78422211), we get a palindrome (89644698).

The spelling of 11222487 in words is "eleven million, two hundred twenty-two thousand, four hundred eighty-seven".