33010221449 has 2 divisors, whose sum is σ = 33010221450. Its totient is φ = 33010221448.

The previous prime is 33010221421. The next prime is 33010221457. The reversal of 33010221449 is 94412201033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28440461449 + 4569760000 = 168643^2 + 67600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33010221449 is a prime.

It is a super-2 number, since 2×33010221449² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (33010221479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16505110724 + 16505110725.

It is an arithmetic number, because the mean of its divisors is an integer number (16505110725).

Almost surely, 2^33010221449 is an apocalyptic number.

It is an amenable number.

33010221449 is a deficient number, since it is larger than the sum of its proper divisors (1).

33010221449 is an equidigital number, since it uses as much as digits as its factorization.

33010221449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 33010221449 in words is "thirty-three billion, ten million, two hundred twenty-one thousand, four hundred forty-nine".