12210122120122 has 4 divisors (see below), whose sum is σ = 18315183180186. Its totient is φ = 6105061060060.

The previous prime is 12210122120117. The next prime is 12210122120129. The reversal of 12210122120122 is 22102122101221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11914032692241 + 296089427881 = 3451671^2 + 544141^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12210122120122.

It is not an unprimeable number, because it can be changed into a prime (12210122120129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052530530029 + ... + 3052530530032.

Almost surely, 2^{12210122120122} is an apocalyptic number.

12210122120122 is a deficient number, since it is larger than the sum of its proper divisors (6105061060064).

12210122120122 is an equidigital number, since it uses as much as digits as its factorization.

12210122120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105061060063.

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

Adding to 12210122120122 its reverse (22102122101221), we get a palindrome (34312244221343).

The spelling of 12210122120122 in words is "twelve trillion, two hundred ten billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-two".