211166252 has 48 divisors (see below), whose sum is σ = 417258240. Its totient is φ = 92664000.

The previous prime is 211166233. The next prime is 211166261. The reversal of 211166252 is 252661112.

211166252 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 245399 + ... + 246257.

It is an arithmetic number, because the mean of its divisors is an integer number (8692880).

Almost surely, 2^211166252 is an apocalyptic number.

211166252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211166252 is a deficient number, since it is larger than the sum of its proper divisors (206091988).

211166252 is a wasteful number, since it uses less digits than its factorization.

211166252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1060 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 211166252 is about 14531.5605493698. The cubic root of 211166252 is about 595.4904996624.

The spelling of 211166252 in words is "two hundred eleven million, one hundred sixty-six thousand, two hundred fifty-two".