212219226 has 24 divisors (see below), whose sum is σ = 460078164. Its totient is φ = 70698240.

The previous prime is 212219207. The next prime is 212219237. The reversal of 212219226 is 622912212.

It is a happy number.

212219226 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 204518601 + 7700625 = 14301^2 + 2775^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 212219226.

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, 52800 + ... + 56676.

Almost surely, 2^212219226 is an apocalyptic number.

212219226 is an abundant number, since it is smaller than the sum of its proper divisors (247858938).

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

212219226 is a wasteful number, since it uses less digits than its factorization.

212219226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926 (or 6923 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 212219226 is about 14567.7460851018. The cubic root of 212219226 is about 596.4786573395.

The spelling of 212219226 in words is "two hundred twelve million, two hundred nineteen thousand, two hundred twenty-six".