213122297239 has 2 divisors, whose sum is σ = 213122297240. Its totient is φ = 213122297238.

The previous prime is 213122297237. The next prime is 213122297273. The reversal of 213122297239 is 932792221312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213122297239 - 2¹ = 213122297237 is a prime.

It is a super-2 number, since 2×213122297239² (a number of 23 digits) contains 22 as substring.

Together with 213122297237, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 213122297195 and 213122297204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213122297231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561148619 + 106561148620.

It is an arithmetic number, because the mean of its divisors is an integer number (106561148620).

Almost surely, 2^213122297239 is an apocalyptic number.

213122297239 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122297239 is an equidigital number, since it uses as much as digits as its factorization.

213122297239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The spelling of 213122297239 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred ninety-seven thousand, two hundred thirty-nine".