12102222112 has 24 divisors (see below), whose sum is σ = 23855679792. Its totient is φ = 6043636800.

The previous prime is 12102222107. The next prime is 12102222137. The reversal of 12102222112 is 21122220121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 207214 + ... + 259117.

It is an arithmetic number, because the mean of its divisors is an integer number (993986658).

Almost surely, 2^12102222112 is an apocalyptic number.

It is an amenable number.

12102222112 is a deficient number, since it is larger than the sum of its proper divisors (11753457680).

12102222112 is an equidigital number, since it uses as much as digits as its factorization.

12102222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467152 (or 467144 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12102222112 its reverse (21122220121), we get a palindrome (33224442233).

The spelling of 12102222112 in words is "twelve billion, one hundred two million, two hundred twenty-two thousand, one hundred twelve".