212301231 has 16 divisors (see below), whose sum is σ = 300867840. Its totient is φ = 132779520.

The previous prime is 212301197. The next prime is 212301263. The reversal of 212301231 is 132103212.

It is not a de Polignac number, because 212301231 - 2¹¹ = 212299183 is a prime.

It is a super-2 number, since 2×212301231² = 90143625368230722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212301231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212301931) 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, 12210 + ... + 23951.

It is an arithmetic number, because the mean of its divisors is an integer number (18804240).

Almost surely, 2^212301231 is an apocalyptic number.

212301231 is a deficient number, since it is larger than the sum of its proper divisors (88566609).

212301231 is a wasteful number, since it uses less digits than its factorization.

212301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36286.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 212301231 is about 14570.5604216173. The cubic root of 212301231 is about 596.5554771674. Note that the first 3 decimals are identical.

Adding to 212301231 its reverse (132103212), we get a palindrome (344404443).

The spelling of 212301231 in words is "two hundred twelve million, three hundred one thousand, two hundred thirty-one".