213122297238 has 8 divisors (see below), whose sum is σ = 426244594488. Its totient is φ = 71040765744.

The previous prime is 213122297237. The next prime is 213122297239. The reversal of 213122297238 is 832792221312.

213122297238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213122297237) and next prime (213122297239).

It is a sphenic number, since it is the product of 3 distinct primes.

213122297238 is an admirable number.

It is a super-2 number, since 2×213122297238² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213122297238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213122297231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17760191431 + ... + 17760191442.

It is an arithmetic number, because the mean of its divisors is an integer number (53280574311).

Almost surely, 2^213122297238 is an apocalyptic number.

213122297238 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213122297238 is a wasteful number, since it uses less digits than its factorization.

213122297238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35520382878.

The product of its digits is 145152, while the sum is 42.

The spelling of 213122297238 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred ninety-seven thousand, two hundred thirty-eight".