12001112212222 has 16 divisors (see below), whose sum is σ = 21011065758720. Its totient is φ = 5033901170808.

The previous prime is 12001112212189. The next prime is 12001112212303. The reversal of 12001112212222 is 22221221110021.

It is a self number, because there is not a number n which added to its sum of digits gives 12001112212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9119385522 + ... + 9119386837.

It is an arithmetic number, because the mean of its divisors is an integer number (1313191609920).

Almost surely, 2^{12001112212222} is an apocalyptic number.

12001112212222 is a deficient number, since it is larger than the sum of its proper divisors (9009953546498).

12001112212222 is a wasteful number, since it uses less digits than its factorization.

12001112212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238772415.

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

Adding to 12001112212222 its reverse (22221221110021), we get a palindrome (34222333322243).

The spelling of 12001112212222 in words is "twelve trillion, one billion, one hundred twelve million, two hundred twelve thousand, two hundred twenty-two".