12201121021112 has 32 divisors (see below), whose sum is σ = 22893021446400. Its totient is φ = 6096316800000.

The previous prime is 12201121021093. The next prime is 12201121021121. The reversal of 12201121021112 is 21112012110221.

It is a super-2 number, since 2×12201121021112² (a number of 27 digits) contains 22 as substring.

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, 67155689 + ... + 67337127.

It is an arithmetic number, because the mean of its divisors is an integer number (715406920200).

Almost surely, 2^{12201121021112} is an apocalyptic number.

It is an amenable number.

12201121021112 is a deficient number, since it is larger than the sum of its proper divisors (10691900425288).

12201121021112 is a wasteful number, since it uses less digits than its factorization.

12201121021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187247 (or 187243 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12201121021112 its reverse (21112012110221), we get a palindrome (33313133131333).

The spelling of 12201121021112 in words is "twelve trillion, two hundred one billion, one hundred twenty-one million, twenty-one thousand, one hundred twelve".