201212321033 has 2 divisors, whose sum is σ = 201212321034. Its totient is φ = 201212321032.

The previous prime is 201212320999. The next prime is 201212321039. The reversal of 201212321033 is 330123212102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201194411209 + 17909824 = 448547^2 + 4232^2 .

It is a cyclic number.

It is not a de Polignac number, because 201212321033 - 2¹² = 201212316937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201212320996 and 201212321014.

It is not a weakly prime, because it can be changed into another prime (201212321039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100606160516 + 100606160517.

It is an arithmetic number, because the mean of its divisors is an integer number (100606160517).

Almost surely, 2^201212321033 is an apocalyptic number.

It is an amenable number.

201212321033 is a deficient number, since it is larger than the sum of its proper divisors (1).

201212321033 is an equidigital number, since it uses as much as digits as its factorization.

201212321033 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 201212321033 its reverse (330123212102), we get a palindrome (531335533135).

The spelling of 201212321033 in words is "two hundred one billion, two hundred twelve million, three hundred twenty-one thousand, thirty-three".