12121110122202 has 24 divisors (see below), whose sum is σ = 27235086942336. Its totient is φ = 4040370040572.

The previous prime is 12121110122201. The next prime is 12121110122347. The reversal of 12121110122202 is 20222101112121.

12121110122202 is a `hidden beast` number, since 121 + 211 + 10 + 122 + 202 = 666.

12121110122202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12121110122201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12470277418 + ... + 12470278389.

It is an arithmetic number, because the mean of its divisors is an integer number (1134795289264).

Almost surely, 2^{12121110122202} is an apocalyptic number.

12121110122202 is an abundant number, since it is smaller than the sum of its proper divisors (15113976820134).

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

12121110122202 is an equidigital number, since it uses as much as digits as its factorization.

12121110122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24940555824 (or 24940555812 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12121110122202 its reverse (20222101112121), we get a palindrome (32343211234323).

The spelling of 12121110122202 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty-two thousand, two hundred two".