212011022222 has 16 divisors (see below), whose sum is σ = 326196763200. Its totient is φ = 103285493760.

The previous prime is 212011022189. The next prime is 212011022239. The reversal of 212011022222 is 222220110212.

It is a happy number.

212011022222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 212011022222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1618022 + ... + 1744137.

It is an arithmetic number, because the mean of its divisors is an integer number (20387297700).

Almost surely, 2^212011022222 is an apocalyptic number.

212011022222 is a deficient number, since it is larger than the sum of its proper divisors (114185740978).

212011022222 is a wasteful number, since it uses less digits than its factorization.

212011022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362971.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212011022222 its reverse (222220110212), we get a palindrome (434231132434).

The spelling of 212011022222 in words is "two hundred twelve billion, eleven million, twenty-two thousand, two hundred twenty-two".