211200231 has 16 divisors (see below), whose sum is σ = 325271808. Its totient is φ = 120470400.

The previous prime is 211200229. The next prime is 211200251. The reversal of 211200231 is 132002112.

It is not a de Polignac number, because 211200231 - 2¹ = 211200229 is a prime.

It is a super-2 number, since 2×211200231² = 89211075148906722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187675 + ... + 188796.

It is an arithmetic number, because the mean of its divisors is an integer number (20329488).

Almost surely, 2^211200231 is an apocalyptic number.

211200231 is a deficient number, since it is larger than the sum of its proper divisors (114071577).

211200231 is a wasteful number, since it uses less digits than its factorization.

211200231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376502.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 211200231 is about 14532.7296472480. The cubic root of 211200231 is about 595.5224382989.

Adding to 211200231 its reverse (132002112), we get a palindrome (343202343).

The spelling of 211200231 in words is "two hundred eleven million, two hundred thousand, two hundred thirty-one".