33221593969 has 2 divisors, whose sum is σ = 33221593970. Its totient is φ = 33221593968.

The previous prime is 33221593897. The next prime is 33221594033. The reversal of 33221593969 is 96939512233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33091975744 + 129618225 = 181912^2 + 11385^2 .

It is a cyclic number.

It is not a de Polignac number, because 33221593969 - 2²⁷ = 33087376241 is a prime.

It is a super-2 number, since 2×33221593969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33221593169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610796984 + 16610796985.

It is an arithmetic number, because the mean of its divisors is an integer number (16610796985).

Almost surely, 2^33221593969 is an apocalyptic number.

It is an amenable number.

33221593969 is a deficient number, since it is larger than the sum of its proper divisors (1).

33221593969 is an equidigital number, since it uses as much as digits as its factorization.

33221593969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2361960, while the sum is 52.

The spelling of 33221593969 in words is "thirty-three billion, two hundred twenty-one million, five hundred ninety-three thousand, nine hundred sixty-nine".