212121212159 has 2 divisors, whose sum is σ = 212121212160. Its totient is φ = 212121212158.

The previous prime is 212121212123. The next prime is 212121212167. The reversal of 212121212159 is 951212121212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212121212159 - 2¹² = 212121208063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212121212759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060606079 + 106060606080.

It is an arithmetic number, because the mean of its divisors is an integer number (106060606080).

Almost surely, 2^212121212159 is an apocalyptic number.

212121212159 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121212159 is an equidigital number, since it uses as much as digits as its factorization.

212121212159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 29.

The spelling of 212121212159 in words is "two hundred twelve billion, one hundred twenty-one million, two hundred twelve thousand, one hundred fifty-nine".