12001121100222 has 32 divisors (see below), whose sum is σ = 24461247918240. Its totient is φ = 3923910606720.

The previous prime is 12001121100191. The next prime is 12001121100239. The reversal of 12001121100222 is 22200112110021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3461929 + ... + 5998932.

It is an arithmetic number, because the mean of its divisors is an integer number (764413997445).

Almost surely, 2^{12001121100222} is an apocalyptic number.

12001121100222 is an abundant number, since it is smaller than the sum of its proper divisors (12460126818018).

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

12001121100222 is a wasteful number, since it uses less digits than its factorization.

12001121100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464908.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12001121100222 its reverse (22200112110021), we get a palindrome (34201233210243).

The spelling of 12001121100222 in words is "twelve trillion, one billion, one hundred twenty-one million, one hundred thousand, two hundred twenty-two".