2221011222 has 32 divisors (see below), whose sum is σ = 4549910400. Its totient is φ = 722537088.

The previous prime is 2221011187. The next prime is 2221011227. The reversal of 2221011222 is 2221101222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221011227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26638 + ... + 71774.

It is an arithmetic number, because the mean of its divisors is an integer number (142184700).

Almost surely, 2^2221011222 is an apocalyptic number.

2221011222 is an abundant number, since it is smaller than the sum of its proper divisors (2328899178).

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

2221011222 is a wasteful number, since it uses less digits than its factorization.

2221011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45340.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2221011222 is about 47127.6057316728. The cubic root of 2221011222 is about 1304.7187920381.

Adding to 2221011222 its reverse (2221101222), we get a palindrome (4442112444).

Subtracting 2221011222 from its reverse (2221101222), we obtain a square (90000 = 300²).

The spelling of 2221011222 in words is "two billion, two hundred twenty-one million, eleven thousand, two hundred twenty-two".