212133330121997 has 2 divisors, whose sum is σ = 212133330121998. Its totient is φ = 212133330121996.

The previous prime is 212133330121969. The next prime is 212133330122003. The reversal of 212133330121997 is 799121033331212.

It is a happy number.

212133330121997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191259661671556 + 20873668450441 = 13829666^2 + 4568771^2 .

It is a cyclic number.

It is not a de Polignac number, because 212133330121997 - 2⁴⁰ = 211033818494221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212133330421997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106066665060998 + 106066665060999.

It is an arithmetic number, because the mean of its divisors is an integer number (106066665060999).

Almost surely, 2^{212133330121997} is an apocalyptic number.

It is an amenable number.

212133330121997 is a deficient number, since it is larger than the sum of its proper divisors (1).

212133330121997 is an equidigital number, since it uses as much as digits as its factorization.

212133330121997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 212133330121997 in words is "two hundred twelve trillion, one hundred thirty-three billion, three hundred thirty million, one hundred twenty-one thousand, nine hundred ninety-seven".