212002102021993 has 2 divisors, whose sum is σ = 212002102021994. Its totient is φ = 212002102021992.

The previous prime is 212002102021937. The next prime is 212002102022021. The reversal of 212002102021993 is 399120201200212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196703654411664 + 15298447610329 = 14025108^2 + 3911323^2 .

It is a cyclic number.

It is not a de Polignac number, because 212002102021993 - 2²⁹ = 212001565151081 is a prime.

It is not a weakly prime, because it can be changed into another prime (212002102021933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106001051010996 + 106001051010997.

It is an arithmetic number, because the mean of its divisors is an integer number (106001051010997).

Almost surely, 2^{212002102021993} is an apocalyptic number.

It is an amenable number.

212002102021993 is a deficient number, since it is larger than the sum of its proper divisors (1).

212002102021993 is an equidigital number, since it uses as much as digits as its factorization.

212002102021993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 212002102021993 in words is "two hundred twelve trillion, two billion, one hundred two million, twenty-one thousand, nine hundred ninety-three".