12120122121163 has 16 divisors (see below), whose sum is σ = 13893462696960. Its totient is φ = 10357297919136.

The previous prime is 12120122121161. The next prime is 12120122121167. The reversal of 12120122121163 is 36112122102121.

It is not a de Polignac number, because 12120122121163 - 2¹ = 12120122121161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12120122121161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1624953 + ... + 5184661.

It is an arithmetic number, because the mean of its divisors is an integer number (868341418560).

Almost surely, 2^{12120122121163} is an apocalyptic number.

12120122121163 is a deficient number, since it is larger than the sum of its proper divisors (1773340575797).

12120122121163 is an equidigital number, since it uses as much as digits as its factorization.

12120122121163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561186.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 12120122121163 its reverse (36112122102121), we get a palindrome (48232244223284).

The spelling of 12120122121163 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred sixty-three".