12120021100193 has 2 divisors, whose sum is σ = 12120021100194. Its totient is φ = 12120021100192.

The previous prime is 12120021100183. The next prime is 12120021100223. The reversal of 12120021100193 is 39100112002121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11818035681169 + 301985419024 = 3437737^2 + 549532^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120021100193 - 2⁴ = 12120021100177 is a prime.

It is a super-2 number, since 2×12120021100193² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12120021100183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060010550096 + 6060010550097.

It is an arithmetic number, because the mean of its divisors is an integer number (6060010550097).

Almost surely, 2^{12120021100193} is an apocalyptic number.

It is an amenable number.

12120021100193 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120021100193 is an equidigital number, since it uses as much as digits as its factorization.

12120021100193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 12120021100193 in words is "twelve trillion, one hundred twenty billion, twenty-one million, one hundred thousand, one hundred ninety-three".