212412231 has 6 divisors (see below), whose sum is σ = 306817680. Its totient is φ = 141608148.

The previous prime is 212412203. The next prime is 212412241. The reversal of 212412231 is 132214212.

It is a happy number.

212412231 is a `hidden beast` number, since 21 + 2 + 412 + 231 = 666.

212412231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212412231 - 2¹¹ = 212410183 is a prime.

It is a super-2 number, since 2×212412231² = 90237911756794722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212412241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11800671 + ... + 11800688.

It is an arithmetic number, because the mean of its divisors is an integer number (51136280).

Almost surely, 2^212412231 is an apocalyptic number.

212412231 is a deficient number, since it is larger than the sum of its proper divisors (94405449).

212412231 is a wasteful number, since it uses less digits than its factorization.

212412231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23601365 (or 23601362 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 212412231 is about 14574.3689743330. The cubic root of 212412231 is about 596.6594271391.

Adding to 212412231 its reverse (132214212), we get a palindrome (344626443).

The spelling of 212412231 in words is "two hundred twelve million, four hundred twelve thousand, two hundred thirty-one".