11881122 has 32 divisors (see below), whose sum is σ = 26763264. Its totient is φ = 3483600.

The previous prime is 11881117. The next prime is 11881123. The reversal of 11881122 is 22118811.

It is a super-2 number, since 2×11881122² = 282322119957768, which contains 22 as substring.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11881092 and 11881101.

It is not an unprimeable number, because it can be changed into a prime (11881123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 858 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (836352).

Almost surely, 2^11881122 is an apocalyptic number.

11881122 is an abundant number, since it is smaller than the sum of its proper divisors (14882142).

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

11881122 is a wasteful number, since it uses less digits than its factorization.

11881122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854.

The product of its digits is 256, while the sum is 24.

The square root of 11881122 is about 3446.9003466883. The cubic root of 11881122 is about 228.1843307742.

Adding to 11881122 its reverse (22118811), we get a palindrome (33999933).

The spelling of 11881122 in words is "eleven million, eight hundred eighty-one thousand, one hundred twenty-two".