212121202201589 has 2 divisors, whose sum is σ = 212121202201590. Its totient is φ = 212121202201588.

The previous prime is 212121202201553. The next prime is 212121202201591. The reversal of 212121202201589 is 985102202121212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118615841388100 + 93505360813489 = 10891090^2 + 9669817^2 .

It is a cyclic number.

It is not a de Polignac number, because 212121202201589 - 2¹² = 212121202197493 is a prime.

Together with 212121202201591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212121202221589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060601100794 + 106060601100795.

It is an arithmetic number, because the mean of its divisors is an integer number (106060601100795).

Almost surely, 2^{212121202201589} is an apocalyptic number.

It is an amenable number.

212121202201589 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121202201589 is an equidigital number, since it uses as much as digits as its factorization.

212121202201589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 38.

The spelling of 212121202201589 in words is "two hundred twelve trillion, one hundred twenty-one billion, two hundred two million, two hundred one thousand, five hundred eighty-nine".