213222120233 has 2 divisors, whose sum is σ = 213222120234. Its totient is φ = 213222120232.

The previous prime is 213222120227. The next prime is 213222120257. The reversal of 213222120233 is 332021222312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204022049344 + 9200070889 = 451688^2 + 95917^2 .

It is a cyclic number.

It is not a de Polignac number, because 213222120233 - 2⁸ = 213222119977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213222120199 and 213222120208.

It is not a weakly prime, because it can be changed into another prime (213222120733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611060116 + 106611060117.

It is an arithmetic number, because the mean of its divisors is an integer number (106611060117).

Almost surely, 2^213222120233 is an apocalyptic number.

It is an amenable number.

213222120233 is a deficient number, since it is larger than the sum of its proper divisors (1).

213222120233 is an equidigital number, since it uses as much as digits as its factorization.

213222120233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 213222120233 its reverse (332021222312), we get a palindrome (545243342545).

The spelling of 213222120233 in words is "two hundred thirteen billion, two hundred twenty-two million, one hundred twenty thousand, two hundred thirty-three".