10212120239 has 2 divisors, whose sum is σ = 10212120240. Its totient is φ = 10212120238.

The previous prime is 10212120179. The next prime is 10212120277. The reversal of 10212120239 is 93202121201.

It is a happy number.

10212120239 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10212120239 - 2¹⁶ = 10212054703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212120299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106060119 + 5106060120.

It is an arithmetic number, because the mean of its divisors is an integer number (5106060120).

Almost surely, 2^10212120239 is an apocalyptic number.

10212120239 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212120239 is an equidigital number, since it uses as much as digits as its factorization.

10212120239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 10212120239 in words is "ten billion, two hundred twelve million, one hundred twenty thousand, two hundred thirty-nine".