12201111112 has 16 divisors (see below), whose sum is σ = 23218533360. Its totient is φ = 6009502224.

The previous prime is 12201111103. The next prime is 12201111113. The reversal of 12201111112 is 21111110221.

It is a happy number.

It is a super-2 number, since 2×12201111112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12201111092 and 12201111101.

It is not an unprimeable number, because it can be changed into a prime (12201111113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11381098 + ... + 11382169.

It is an arithmetic number, because the mean of its divisors is an integer number (1451158335).

Almost surely, 2^12201111112 is an apocalyptic number.

It is an amenable number.

12201111112 is a deficient number, since it is larger than the sum of its proper divisors (11017422248).

12201111112 is a wasteful number, since it uses less digits than its factorization.

12201111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22763340 (or 22763336 counting only the distinct ones).

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

Adding to 12201111112 its reverse (21111110221), we get a palindrome (33312221333).

The spelling of 12201111112 in words is "twelve billion, two hundred one million, one hundred eleven thousand, one hundred twelve".