12012112121122 has 8 divisors (see below), whose sum is σ = 18076859284176. Its totient is φ = 5986492359732.

The previous prime is 12012112121071. The next prime is 12012112121167. The reversal of 12012112121122 is 22112121121021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12012112121122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12012112121122.

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, 9781849648 + ... + 9781850875.

It is an arithmetic number, because the mean of its divisors is an integer number (2259607410522).

Almost surely, 2^{12012112121122} is an apocalyptic number.

12012112121122 is a deficient number, since it is larger than the sum of its proper divisors (6064747163054).

12012112121122 is a wasteful number, since it uses less digits than its factorization.

12012112121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19563700832.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12012112121122 its reverse (22112121121021), we get a palindrome (34124233242143).

The spelling of 12012112121122 in words is "twelve trillion, twelve billion, one hundred twelve million, one hundred twenty-one thousand, one hundred twenty-two".