11222211221222 has 8 divisors (see below), whose sum is σ = 16834429382472. Its totient is φ = 5610734760400.

The previous prime is 11222211221189. The next prime is 11222211221237. The reversal of 11222211221222 is 22212211222211.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185387279 + ... + 185447802.

It is an arithmetic number, because the mean of its divisors is an integer number (2104303672809).

Almost surely, 2^{11222211221222} is an apocalyptic number.

11222211221222 is a deficient number, since it is larger than the sum of its proper divisors (5612218161250).

11222211221222 is a wasteful number, since it uses less digits than its factorization.

11222211221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370850214.

The product of its digits is 512, while the sum is 23.

Adding to 11222211221222 its reverse (22212211222211), we get a palindrome (33434422443433).

The spelling of 11222211221222 in words is "eleven trillion, two hundred twenty-two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty-two".