211952236 has 12 divisors (see below), whose sum is σ = 373748760. Its totient is φ = 105166880.

The previous prime is 211952233. The next prime is 211952261. The reversal of 211952236 is 632259112.

It is a junction number, because it is equal to n+sod(n) for n = 211952198 and 211952207.

It is not an unprimeable number, because it can be changed into a prime (211952233) 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 3 ways as a sum of consecutive naturals, for example, 201721 + ... + 202768.

It is an arithmetic number, because the mean of its divisors is an integer number (31145730).

Almost surely, 2^211952236 is an apocalyptic number.

It is an amenable number.

211952236 is a deficient number, since it is larger than the sum of its proper divisors (161796524).

211952236 is a wasteful number, since it uses less digits than its factorization.

211952236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404624 (or 404622 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 211952236 is about 14558.5794636702. The cubic root of 211952236 is about 596.2284119189.

The spelling of 211952236 in words is "two hundred eleven million, nine hundred fifty-two thousand, two hundred thirty-six".