11221001012222 has 4 divisors (see below), whose sum is σ = 16831501518336. Its totient is φ = 5610500506110.

The previous prime is 11221001012203. The next prime is 11221001012227. The reversal of 11221001012222 is 22221010012211.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11221001012222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221001012227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805250253054 + ... + 2805250253057.

It is an arithmetic number, because the mean of its divisors is an integer number (4207875379584).

Almost surely, 2^{11221001012222} is an apocalyptic number.

11221001012222 is a deficient number, since it is larger than the sum of its proper divisors (5610500506114).

11221001012222 is an equidigital number, since it uses as much as digits as its factorization.

11221001012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610500506113.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11221001012222 its reverse (22221010012211), we get a palindrome (33442011024433).

The spelling of 11221001012222 in words is "eleven trillion, two hundred twenty-one billion, one million, twelve thousand, two hundred twenty-two".