12211101112 has 16 divisors (see below), whose sum is σ = 26166645360. Its totient is φ = 5233329024.

The previous prime is 12211101101. The next prime is 12211101163. The reversal of 12211101112 is 21110111221.

It is a happy number.

It is a super-2 number, since 2×12211101112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211101092 and 12211101101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109027633 + ... + 109027744.

It is an arithmetic number, because the mean of its divisors is an integer number (1635415335).

Almost surely, 2^12211101112 is an apocalyptic number.

It is an amenable number.

12211101112 is an abundant number, since it is smaller than the sum of its proper divisors (13955544248).

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

12211101112 is a wasteful number, since it uses less digits than its factorization.

12211101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218055390 (or 218055386 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12211101112 its reverse (21110111221), we get a palindrome (33321212333).

The spelling of 12211101112 in words is "twelve billion, two hundred eleven million, one hundred one thousand, one hundred twelve".