11122788 has 12 divisors (see below), whose sum is σ = 25953200. Its totient is φ = 3707592.

The previous prime is 11122763. The next prime is 11122799. The reversal of 11122788 is 88722111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463438 + ... + 463461.

Almost surely, 2^11122788 is an apocalyptic number.

It is an amenable number.

11122788 is an abundant number, since it is smaller than the sum of its proper divisors (14830412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11122788 is a wasteful number, since it uses less digits than its factorization.

11122788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926906 (or 926904 counting only the distinct ones).

The product of its digits is 1792, while the sum is 30.

The square root of 11122788 is about 3335.0844067280. The cubic root of 11122788 is about 223.2224582687. Note that the first 3 decimals are identical.

Adding to 11122788 its reverse (88722111), we get a palindrome (99844899).

It can be divided in two parts, 1112278 and 8, that added together give a triangular number (1112286 = T₁₄₉₁).

The spelling of 11122788 in words is "eleven million, one hundred twenty-two thousand, seven hundred eighty-eight".