11992211 has 24 divisors (see below), whose sum is σ = 16032960. Its totient is φ = 8845200.

The previous prime is 11992193. The next prime is 11992217. The reversal of 11992211 is 11229911.

It is not a de Polignac number, because 11992211 - 2⁶ = 11992147 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11992217) 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, 9656 + ... + 10826.

It is an arithmetic number, because the mean of its divisors is an integer number (668040).

Almost surely, 2^11992211 is an apocalyptic number.

11992211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11992211 is a deficient number, since it is larger than the sum of its proper divisors (4040749).

11992211 is a wasteful number, since it uses less digits than its factorization.

11992211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1208 counting only the distinct ones).

The product of its digits is 324, while the sum is 26.

The square root of 11992211 is about 3462.9771873346. The cubic root of 11992211 is about 228.8933034604.

The spelling of 11992211 in words is "eleven million, nine hundred ninety-two thousand, two hundred eleven".