11122011 has 24 divisors (see below), whose sum is σ = 17048720. Its totient is φ = 6967296.

The previous prime is 11122003. The next prime is 11122039. The reversal of 11122011 is 11022111.

It is a happy number.

11122011 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11122011 - 2³ = 11122003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121984 and 11122002.

It is not an unprimeable number, because it can be changed into a prime (11122411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32835 + ... + 33171.

Almost surely, 2^11122011 is an apocalyptic number.

11122011 is a deficient number, since it is larger than the sum of its proper divisors (5926709).

11122011 is a wasteful number, since it uses less digits than its factorization.

11122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 11122011 is about 3334.9679158876. The cubic root of 11122011 is about 223.2172602947.

Adding to 11122011 its reverse (11022111), we get a palindrome (22144122).

It can be divided in two parts, 111 and 22011, that added together give a palindrome (22122).

The spelling of 11122011 in words is "eleven million, one hundred twenty-two thousand, eleven".