11221001222222 has 64 divisors (see below), whose sum is σ = 19111974174720. Its totient is φ = 4894852658400.

The previous prime is 11221001222209. The next prime is 11221001222237. The reversal of 11221001222222 is 22222210012211.

11221001222222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11221001222194 and 11221001222203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84019103 + ... + 84152549.

It is an arithmetic number, because the mean of its divisors is an integer number (298624596480).

Almost surely, 2^{11221001222222} is an apocalyptic number.

11221001222222 is a deficient number, since it is larger than the sum of its proper divisors (7890972952498).

11221001222222 is a wasteful number, since it uses less digits than its factorization.

11221001222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134517.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11221001222222 its reverse (22222210012211), we get a palindrome (33443211234433).

The spelling of 11221001222222 in words is "eleven trillion, two hundred twenty-one billion, one million, two hundred twenty-two thousand, two hundred twenty-two".