11668212 has 30 divisors (see below), whose sum is σ = 30503858. Its totient is φ = 3889296.

The previous prime is 11668193. The next prime is 11668229. The reversal of 11668212 is 21286611.

It can be written as a sum of positive squares in only one way, i.e., 9696996 + 1971216 = 3114^2 + 1404^2 .

It is a super-2 number, since 2×11668212² = 272294342553888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 17683 + ... + 18330.

Almost surely, 2^11668212 is an apocalyptic number.

11668212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11668212 is an abundant number, since it is smaller than the sum of its proper divisors (18835646).

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

11668212 is a wasteful number, since it uses less digits than its factorization.

11668212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36029 (or 36018 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 11668212 is about 3415.8764614664. The cubic root of 11668212 is about 226.8130839852.

The spelling of 11668212 in words is "eleven million, six hundred sixty-eight thousand, two hundred twelve".