2221000022222 has 16 divisors (see below), whose sum is σ = 3351207030192. Its totient is φ = 1103949916800.

The previous prime is 2221000022203. The next prime is 2221000022231. The reversal of 2221000022222 is 2222200001222.

2221000022222 is digitally balanced in base 2, 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 2221000022222.

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, 4490828 + ... + 4960799.

It is an arithmetic number, because the mean of its divisors is an integer number (209450439387).

Almost surely, 2^{2221000022222} is an apocalyptic number.

2221000022222 is a deficient number, since it is larger than the sum of its proper divisors (1130207007970).

2221000022222 is a wasteful number, since it uses less digits than its factorization.

2221000022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452323.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 2221000022222 its reverse (2222200001222), we get a palindrome (4443200023444).

The spelling of 2221000022222 in words is "two trillion, two hundred twenty-one billion, twenty-two thousand, two hundred twenty-two".