12012102221122 has 8 divisors (see below), whose sum is σ = 18639468963900. Its totient is φ = 5798945899824.

The previous prime is 12012102221111. The next prime is 12012102221129. The reversal of 12012102221122 is 22112220121021.

It can be written as a sum of positive squares in 2 ways, for example, as 11970831892321 + 41270328801 = 3459889^2 + 203151^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12012102221122.

It is not an unprimeable number, because it can be changed into a prime (12012102221129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103552605297 + ... + 103552605412.

Almost surely, 2^{12012102221122} is an apocalyptic number.

12012102221122 is a deficient number, since it is larger than the sum of its proper divisors (6627366742778).

12012102221122 is a wasteful number, since it uses less digits than its factorization.

12012102221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207105210740.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12012102221122 its reverse (22112220121021), we get a palindrome (34124322342143).

The spelling of 12012102221122 in words is "twelve trillion, twelve billion, one hundred two million, two hundred twenty-one thousand, one hundred twenty-two".