12201121112 has 32 divisors (see below), whose sum is σ = 23622211200. Its totient is φ = 5901984000.

The previous prime is 12201121103. The next prime is 12201121123. The reversal of 12201121112 is 21112110221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1227362 + ... + 1237262.

It is an arithmetic number, because the mean of its divisors is an integer number (738194100).

Almost surely, 2^12201121112 is an apocalyptic number.

It is an amenable number.

12201121112 is a deficient number, since it is larger than the sum of its proper divisors (11421090088).

12201121112 is a wasteful number, since it uses less digits than its factorization.

12201121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14907 (or 14903 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12201121112 its reverse (21112110221), we get a palindrome (33313231333).

The spelling of 12201121112 in words is "twelve billion, two hundred one million, one hundred twenty-one thousand, one hundred twelve".