16811212 has 12 divisors (see below), whose sum is σ = 32094216. Its totient is φ = 7641440.

The previous prime is 16811203. The next prime is 16811231. The reversal of 16811212 is 21211861.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190993 + ... + 191080.

It is an arithmetic number, because the mean of its divisors is an integer number (2674518).

Almost surely, 2^16811212 is an apocalyptic number.

It is an amenable number.

16811212 is a deficient number, since it is larger than the sum of its proper divisors (15283004).

16811212 is a wasteful number, since it uses less digits than its factorization.

16811212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382088 (or 382086 counting only the distinct ones).

The product of its digits is 192, while the sum is 22.

The square root of 16811212 is about 4100.1478022140. The cubic root of 16811212 is about 256.1727959369.

The spelling of 16811212 in words is "sixteen million, eight hundred eleven thousand, two hundred twelve".