212233231 has 8 divisors (see below), whose sum is σ = 244404864. Its totient is φ = 180524760.

The previous prime is 212233193. The next prime is 212233237. The reversal of 212233231 is 132332212.

212233231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212233231 - 2⁷ = 212233103 is a prime.

It is a super-2 number, since 2×212233231² = 90085888681398722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212233199 and 212233208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212233237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114805 + ... + 116638.

It is an arithmetic number, because the mean of its divisors is an integer number (30550608).

Almost surely, 2^212233231 is an apocalyptic number.

212233231 is a deficient number, since it is larger than the sum of its proper divisors (32171633).

212233231 is a wasteful number, since it uses less digits than its factorization.

212233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231581.

The product of its digits is 432, while the sum is 19.

The square root of 212233231 is about 14568.2267623757. The cubic root of 212233231 is about 596.4917782052.

Adding to 212233231 its reverse (132332212), we get a palindrome (344565443).

It can be divided in two parts, 2122 and 33231, that added together give a palindrome (35353).

The spelling of 212233231 in words is "two hundred twelve million, two hundred thirty-three thousand, two hundred thirty-one".