2221002112222 has 16 divisors (see below), whose sum is σ = 3340218183120. Its totient is φ = 1107596309632.

The previous prime is 2221002112187. The next prime is 2221002112249. The reversal of 2221002112222 is 2222112001222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221002112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22070673 + ... + 22171075.

It is an arithmetic number, because the mean of its divisors is an integer number (208763636445).

Almost surely, 2^{2221002112222} is an apocalyptic number.

2221002112222 is a deficient number, since it is larger than the sum of its proper divisors (1119216070898).

2221002112222 is a wasteful number, since it uses less digits than its factorization.

2221002112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129227.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2221002112222 its reverse (2222112001222), we get a palindrome (4443114113444).

The spelling of 2221002112222 in words is "two trillion, two hundred twenty-one billion, two million, one hundred twelve thousand, two hundred twenty-two".