33045053221 has 2 divisors, whose sum is σ = 33045053222. Its totient is φ = 33045053220.

The previous prime is 33045053191. The next prime is 33045053231. The reversal of 33045053221 is 12235054033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17112302596 + 15932750625 = 130814^2 + 126225^2 .

It is a cyclic number.

It is not a de Polignac number, because 33045053221 - 2⁹ = 33045052709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 33045053221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33045053231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16522526610 + 16522526611.

It is an arithmetic number, because the mean of its divisors is an integer number (16522526611).

Almost surely, 2^33045053221 is an apocalyptic number.

It is an amenable number.

33045053221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33045053221 is an equidigital number, since it uses as much as digits as its factorization.

33045053221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 33045053221 in words is "thirty-three billion, forty-five million, fifty-three thousand, two hundred twenty-one".