212421124193 has 2 divisors, whose sum is σ = 212421124194. Its totient is φ = 212421124192.

The previous prime is 212421124159. The next prime is 212421124213. The reversal of 212421124193 is 391421124212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203664469264 + 8756654929 = 451292^2 + 93577^2 .

It is a cyclic number.

It is not a de Polignac number, because 212421124193 - 2²⁰ = 212420075617 is a prime.

It is not a weakly prime, because it can be changed into another prime (212421124103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106210562096 + 106210562097.

It is an arithmetic number, because the mean of its divisors is an integer number (106210562097).

Almost surely, 2^212421124193 is an apocalyptic number.

It is an amenable number.

212421124193 is a deficient number, since it is larger than the sum of its proper divisors (1).

212421124193 is an equidigital number, since it uses as much as digits as its factorization.

212421124193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The spelling of 212421124193 in words is "two hundred twelve billion, four hundred twenty-one million, one hundred twenty-four thousand, one hundred ninety-three".