213122021033 has 2 divisors, whose sum is σ = 213122021034. Its totient is φ = 213122021032.

The previous prime is 213122021027. The next prime is 213122021087. The reversal of 213122021033 is 330120221312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173045184169 + 40076836864 = 415987^2 + 200192^2 .

It is a cyclic number.

It is not a de Polignac number, because 213122021033 - 2²⁴ = 213105243817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213122020996 and 213122021014.

It is not a weakly prime, because it can be changed into another prime (213122011033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561010516 + 106561010517.

It is an arithmetic number, because the mean of its divisors is an integer number (106561010517).

Almost surely, 2^213122021033 is an apocalyptic number.

It is an amenable number.

213122021033 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122021033 is an equidigital number, since it uses as much as digits as its factorization.

213122021033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213122021033 its reverse (330120221312), we get a palindrome (543242242345).

The spelling of 213122021033 in words is "two hundred thirteen billion, one hundred twenty-two million, twenty-one thousand, thirty-three".