12102112122 has 16 divisors (see below), whose sum is σ = 24205713312. Its totient is φ = 4033789200.

The previous prime is 12102112069. The next prime is 12102112151. The reversal of 12102112122 is 22121120121.

It is a super-2 number, since 2×12102112122² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62997 + ... + 167847.

It is an arithmetic number, because the mean of its divisors is an integer number (1512857082).

Almost surely, 2^12102112122 is an apocalyptic number.

12102112122 is an abundant number, since it is smaller than the sum of its proper divisors (12103601190).

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

12102112122 is a wasteful number, since it uses less digits than its factorization.

12102112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124093.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12102112122 its reverse (22121120121), we get a palindrome (34223232243).

The spelling of 12102112122 in words is "twelve billion, one hundred two million, one hundred twelve thousand, one hundred twenty-two".