213122412233243 has 12 divisors (see below), whose sum is σ = 220794085234944. Its totient is φ = 205708990143600.

The previous prime is 213122412233239. The next prime is 213122412233249. The reversal of 213122412233243 is 342332214221312.

213122412233243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213122412233243 - 2² = 213122412233239 is a prime.

It is a super-2 number, since 2×213122412233243² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213122412233249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289150868 + ... + 289886993.

It is an arithmetic number, because the mean of its divisors is an integer number (18399507102912).

Almost surely, 2^{213122412233243} is an apocalyptic number.

213122412233243 is a deficient number, since it is larger than the sum of its proper divisors (7671673001701).

213122412233243 is an equidigital number, since it uses as much as digits as its factorization.

213122412233243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579038306 (or 579038275 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

Adding to 213122412233243 its reverse (342332214221312), we get a palindrome (555454626454555).

The spelling of 213122412233243 in words is "two hundred thirteen trillion, one hundred twenty-two billion, four hundred twelve million, two hundred thirty-three thousand, two hundred forty-three".