12001121203117 has 2 divisors, whose sum is σ = 12001121203118. Its totient is φ = 12001121203116.

The previous prime is 12001121202977. The next prime is 12001121203151. The reversal of 12001121203117 is 71130212110021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8800650294921 + 3200470908196 = 2966589^2 + 1788986^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001121203117 - 2¹⁹ = 12001120678829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001121203157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000560601558 + 6000560601559.

It is an arithmetic number, because the mean of its divisors is an integer number (6000560601559).

Almost surely, 2^{12001121203117} is an apocalyptic number.

It is an amenable number.

12001121203117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001121203117 is an equidigital number, since it uses as much as digits as its factorization.

12001121203117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 12001121203117 its reverse (71130212110021), we get a palindrome (83131333313138).

The spelling of 12001121203117 in words is "twelve trillion, one billion, one hundred twenty-one million, two hundred three thousand, one hundred seventeen".