12012001111122 has 64 divisors (see below), whose sum is σ = 25086698348544. Its totient is φ = 3831483954240.

The previous prime is 12012001111087. The next prime is 12012001111127. The reversal of 12012001111122 is 22111110021021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12012001111127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 782043 + ... + 4963425.

It is an arithmetic number, because the mean of its divisors is an integer number (391979661696).

Almost surely, 2^{12012001111122} is an apocalyptic number.

12012001111122 is an abundant number, since it is smaller than the sum of its proper divisors (13074697237422).

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

12012001111122 is a wasteful number, since it uses less digits than its factorization.

12012001111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181663.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12012001111122 its reverse (22111110021021), we get a palindrome (34123111132143).

The spelling of 12012001111122 in words is "twelve trillion, twelve billion, one million, one hundred eleven thousand, one hundred twenty-two".