33212313361 has 2 divisors, whose sum is σ = 33212313362. Its totient is φ = 33212313360.

The previous prime is 33212313349. The next prime is 33212313371. The reversal of 33212313361 is 16331321233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26750565136 + 6461748225 = 163556^2 + 80385^2 .

It is an emirp because it is prime and its reverse (16331321233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33212313361 - 2¹³ = 33212305169 is a prime.

It is a super-2 number, since 2×33212313361² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33212313371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16606156680 + 16606156681.

It is an arithmetic number, because the mean of its divisors is an integer number (16606156681).

Almost surely, 2^33212313361 is an apocalyptic number.

It is an amenable number.

33212313361 is a deficient number, since it is larger than the sum of its proper divisors (1).

33212313361 is an equidigital number, since it uses as much as digits as its factorization.

33212313361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 28.

Adding to 33212313361 its reverse (16331321233), we get a palindrome (49543634594).

The spelling of 33212313361 in words is "thirty-three billion, two hundred twelve million, three hundred thirteen thousand, three hundred sixty-one".