213210221033 has 2 divisors, whose sum is σ = 213210221034. Its totient is φ = 213210221032.

The previous prime is 213210221011. The next prime is 213210221093. The reversal of 213210221033 is 330122012312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154891834969 + 58318386064 = 393563^2 + 241492^2 .

It is a cyclic number.

It is not a de Polignac number, because 213210221033 - 2¹⁰ = 213210220009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213210220996 and 213210221014.

It is not a weakly prime, because it can be changed into another prime (213210221093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605110516 + 106605110517.

It is an arithmetic number, because the mean of its divisors is an integer number (106605110517).

Almost surely, 2^213210221033 is an apocalyptic number.

It is an amenable number.

213210221033 is a deficient number, since it is larger than the sum of its proper divisors (1).

213210221033 is an equidigital number, since it uses as much as digits as its factorization.

213210221033 is an evil number, because the sum of its binary digits is even.

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

Adding to 213210221033 its reverse (330122012312), we get a palindrome (543332233345).

The spelling of 213210221033 in words is "two hundred thirteen billion, two hundred ten million, two hundred twenty-one thousand, thirty-three".