2221211222 has 8 divisors (see below), whose sum is σ = 3351768336. Its totient is φ = 1103955112.

The previous prime is 2221211221. The next prime is 2221211227. The reversal of 2221211222 is 2221121222.

It is a happy number.

2221211222 is digitally balanced in base 2, 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 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 2221211222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221211221) 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, 3324833 + ... + 3325500.

It is an arithmetic number, because the mean of its divisors is an integer number (418971042).

Almost surely, 2^2221211222 is an apocalyptic number.

2221211222 is a deficient number, since it is larger than the sum of its proper divisors (1130557114).

2221211222 is a wasteful number, since it uses less digits than its factorization.

2221211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650502.

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

The square root of 2221211222 is about 47129.7275824930. The cubic root of 2221211222 is about 1304.7579537682.

Adding to 2221211222 its reverse (2221121222), we get a palindrome (4442332444).

Subtracting from 2221211222 its reverse (2221121222), we obtain a square (90000 = 300²).

The spelling of 2221211222 in words is "two billion, two hundred twenty-one million, two hundred eleven thousand, two hundred twenty-two".