212221133318 has 8 divisors (see below), whose sum is σ = 318715697280. Its totient is φ = 105982567560.

The previous prime is 212221133317. The next prime is 212221133321. The reversal of 212221133318 is 813331122212.

212221133318 is digitally balanced in base 3, 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 Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221133317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63997478 + ... + 64000793.

It is an arithmetic number, because the mean of its divisors is an integer number (39839462160).

Almost surely, 2^212221133318 is an apocalyptic number.

212221133318 is a deficient number, since it is larger than the sum of its proper divisors (106494563962).

212221133318 is a wasteful number, since it uses less digits than its factorization.

212221133318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127999102.

The product of its digits is 3456, while the sum is 29.

The spelling of 212221133318 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred thirty-three thousand, three hundred eighteen".