12120011221943 has 2 divisors, whose sum is σ = 12120011221944. Its totient is φ = 12120011221942.

The previous prime is 12120011221937. The next prime is 12120011222041. The reversal of 12120011221943 is 34912211002121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12120011221943 - 2³⁰ = 12118937480119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120011221933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060005610971 + 6060005610972.

It is an arithmetic number, because the mean of its divisors is an integer number (6060005610972).

Almost surely, 2^{12120011221943} is an apocalyptic number.

12120011221943 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120011221943 is an equidigital number, since it uses as much as digits as its factorization.

12120011221943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 12120011221943 in words is "twelve trillion, one hundred twenty billion, eleven million, two hundred twenty-one thousand, nine hundred forty-three".