212788212 has 48 divisors (see below), whose sum is σ = 611087232. Its totient is φ = 56119680.

The previous prime is 212788193. The next prime is 212788217. The reversal of 212788212 is 212887212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212788217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96339 + ... + 98522.

It is an arithmetic number, because the mean of its divisors is an integer number (12730984).

Almost surely, 2^212788212 is an apocalyptic number.

It is an amenable number.

212788212 is an abundant number, since it is smaller than the sum of its proper divisors (398299020).

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

212788212 is a wasteful number, since it uses less digits than its factorization.

212788212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194888 (or 194886 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 212788212 is about 14587.2619774926. The cubic root of 212788212 is about 597.0112593237.

The spelling of 212788212 in words is "two hundred twelve million, seven hundred eighty-eight thousand, two hundred twelve".