12210111112 has 32 divisors (see below), whose sum is σ = 23849337600. Its totient is φ = 5853902400.

The previous prime is 12210111107. The next prime is 12210111157. The reversal of 12210111112 is 21111101221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12210111092 and 12210111101.

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, 198814 + ... + 252877.

It is an arithmetic number, because the mean of its divisors is an integer number (745291800).

Almost surely, 2^12210111112 is an apocalyptic number.

It is an amenable number.

12210111112 is a deficient number, since it is larger than the sum of its proper divisors (11639226488).

12210111112 is a wasteful number, since it uses less digits than its factorization.

12210111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451837 (or 451833 counting only the distinct ones).

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

Adding to 12210111112 its reverse (21111101221), we get a palindrome (33321212333).

The spelling of 12210111112 in words is "twelve billion, two hundred ten million, one hundred eleven thousand, one hundred twelve".