212231412 has 36 divisors (see below), whose sum is σ = 537176640. Its totient is φ = 70651152.

The previous prime is 212231399. The next prime is 212231423. The reversal of 212231412 is 214132212.

It is a happy number.

212231412 is a `hidden beast` number, since 21 + 2 + 231 + 412 = 666.

212231412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27493 + ... + 34355.

Almost surely, 2^212231412 is an apocalyptic number.

It is an amenable number.

212231412 is an abundant number, since it is smaller than the sum of its proper divisors (324945228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212231412 is a wasteful number, since it uses less digits than its factorization.

212231412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7732 (or 7727 counting only the distinct ones).

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

The square root of 212231412 is about 14568.1643318573. The cubic root of 212231412 is about 596.4900740711.

Adding to 212231412 its reverse (214132212), we get a palindrome (426363624).

The spelling of 212231412 in words is "two hundred twelve million, two hundred thirty-one thousand, four hundred twelve".