212121020200097 has 2 divisors, whose sum is σ = 212121020200098. Its totient is φ = 212121020200096.

The previous prime is 212121020200069. The next prime is 212121020200123. The reversal of 212121020200097 is 790002020121212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178062229248016 + 34058790952081 = 13343996^2 + 5835991^2 .

It is a cyclic number.

It is not a de Polignac number, because 212121020200097 - 2¹⁰ = 212121020199073 is a prime.

It is a super-3 number, since 3×212121020200097³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (212121020400097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060510100048 + 106060510100049.

It is an arithmetic number, because the mean of its divisors is an integer number (106060510100049).

Almost surely, 2^{212121020200097} is an apocalyptic number.

It is an amenable number.

212121020200097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121020200097 is an equidigital number, since it uses as much as digits as its factorization.

212121020200097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The spelling of 212121020200097 in words is "two hundred twelve trillion, one hundred twenty-one billion, twenty million, two hundred thousand, ninety-seven".