12101111201112 has 64 divisors (see below), whose sum is σ = 30264528480480. Its totient is φ = 4032137398272.

The previous prime is 12101111201087. The next prime is 12101111201119. The reversal of 12101111201112 is 21110211110121.

It is a super-2 number, since 2×12101111201112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12101111201091 and 12101111201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101111201119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069280478 + ... + 1069291794.

Almost surely, 2^{12101111201112} is an apocalyptic number.

12101111201112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12101111201112 is an abundant number, since it is smaller than the sum of its proper divisors (18163417279368).

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

12101111201112 is a wasteful number, since it uses less digits than its factorization.

12101111201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24692 (or 24688 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12101111201112 its reverse (21110211110121), we get a palindrome (33211322311233).

Subtracting 12101111201112 from its reverse (21110211110121), we obtain a palindrome (9009099909009).

The spelling of 12101111201112 in words is "twelve trillion, one hundred one billion, one hundred eleven million, two hundred one thousand, one hundred twelve".