1212200010193 has 2 divisors, whose sum is σ = 1212200010194. Its totient is φ = 1212200010192.

The previous prime is 1212200010181. The next prime is 1212200010223. The reversal of 1212200010193 is 3910100022121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 771978376129 + 440221634064 = 878623^2 + 663492^2 .

It is an emirp because it is prime and its reverse (3910100022121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212200010193 - 2²¹ = 1212197913041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212200010113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606100005096 + 606100005097.

It is an arithmetic number, because the mean of its divisors is an integer number (606100005097).

Almost surely, 2^{1212200010193} is an apocalyptic number.

It is an amenable number.

1212200010193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212200010193 is an equidigital number, since it uses as much as digits as its factorization.

1212200010193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1212200010193 in words is "one trillion, two hundred twelve billion, two hundred million, ten thousand, one hundred ninety-three".