12120022143217 has 2 divisors, whose sum is σ = 12120022143218. Its totient is φ = 12120022143216.

The previous prime is 12120022143199. The next prime is 12120022143253. The reversal of 12120022143217 is 71234122002121.

12120022143217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7232248432656 + 4887773710561 = 2689284^2 + 2210831^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120022143217 - 2³⁹ = 11570266329329 is a prime.

It is not a weakly prime, because it can be changed into another prime (12120022143287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060011071608 + 6060011071609.

It is an arithmetic number, because the mean of its divisors is an integer number (6060011071609).

Almost surely, 2^{12120022143217} is an apocalyptic number.

It is an amenable number.

12120022143217 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120022143217 is an equidigital number, since it uses as much as digits as its factorization.

12120022143217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 12120022143217 its reverse (71234122002121), we get a palindrome (83354144145338).

The spelling of 12120022143217 in words is "twelve trillion, one hundred twenty billion, twenty-two million, one hundred forty-three thousand, two hundred seventeen".