212231196 has 54 divisors (see below), whose sum is σ = 569914800. Its totient is φ = 66579072.

The previous prime is 212231167. The next prime is 212231207. The reversal of 212231196 is 691132212.

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 17 ways as a sum of consecutive naturals, for example, 205 + ... + 20603.

Almost surely, 2^212231196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212231196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284957400).

212231196 is an abundant number, since it is smaller than the sum of its proper divisors (357683604).

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

212231196 is a wasteful number, since it uses less digits than its factorization.

212231196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20443 (or 20421 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 212231196 is about 14568.1569184300. The cubic root of 212231196 is about 596.4898717104.

The spelling of 212231196 in words is "two hundred twelve million, two hundred thirty-one thousand, one hundred ninety-six".