12201110021144 has 16 divisors (see below), whose sum is σ = 24956815952520. Its totient is φ = 5545959100480.

The previous prime is 12201110021143. The next prime is 12201110021227. The reversal of 12201110021144 is 44112001110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201110021143) by changing a digit.

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, 69324488669 + ... + 69324488844.

Almost surely, 2^{12201110021144} is an apocalyptic number.

It is an amenable number.

12201110021144 is an abundant number, since it is smaller than the sum of its proper divisors (12755705931376).

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

12201110021144 is a wasteful number, since it uses less digits than its factorization.

12201110021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138648977530 (or 138648977526 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12201110021144 its reverse (44112001110221), we get a palindrome (56313111131365).

The spelling of 12201110021144 in words is "twelve trillion, two hundred one billion, one hundred ten million, twenty-one thousand, one hundred forty-four".