212101001239 has 2 divisors, whose sum is σ = 212101001240. Its totient is φ = 212101001238.

The previous prime is 212101001219. The next prime is 212101001251. The reversal of 212101001239 is 932100101212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212101001239 - 2⁵ = 212101001207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212101001219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050500619 + 106050500620.

It is an arithmetic number, because the mean of its divisors is an integer number (106050500620).

Almost surely, 2^212101001239 is an apocalyptic number.

212101001239 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101001239 is an equidigital number, since it uses as much as digits as its factorization.

212101001239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 212101001239 in words is "two hundred twelve billion, one hundred one million, one thousand, two hundred thirty-nine".