11221211022222 has 8 divisors (see below), whose sum is σ = 22442422044456. Its totient is φ = 3740403674072.

The previous prime is 11221211022179. The next prime is 11221211022247. The reversal of 11221211022222 is 22222011212211.

It is a sphenic number, since it is the product of 3 distinct primes.

11221211022222 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935100918513 + ... + 935100918524.

It is an arithmetic number, because the mean of its divisors is an integer number (2805302755557).

Almost surely, 2^{11221211022222} is an apocalyptic number.

11221211022222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11221211022222 is a wasteful number, since it uses less digits than its factorization.

11221211022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870201837042.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11221211022222 its reverse (22222011212211), we get a palindrome (33443222234433).

The spelling of 11221211022222 in words is "eleven trillion, two hundred twenty-one billion, two hundred eleven million, twenty-two thousand, two hundred twenty-two".