12011221012222 has 8 divisors (see below), whose sum is σ = 18030940239096. Its totient is φ = 6000907599192.

The previous prime is 12011221012163. The next prime is 12011221012237. The reversal of 12011221012222 is 22221012211021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12011221012222.

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, 2351450268 + ... + 2351455375.

It is an arithmetic number, because the mean of its divisors is an integer number (2253867529887).

Almost surely, 2^{12011221012222} is an apocalyptic number.

12011221012222 is a deficient number, since it is larger than the sum of its proper divisors (6019719226874).

12011221012222 is a wasteful number, since it uses less digits than its factorization.

12011221012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702906922.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12011221012222 its reverse (22221012211021), we get a palindrome (34232233223243).

The spelling of 12011221012222 in words is "twelve trillion, eleven billion, two hundred twenty-one million, twelve thousand, two hundred twenty-two".