33300011221 has 4 divisors (see below), whose sum is σ = 34448287500. Its totient is φ = 32151734944.

The previous prime is 33300011209. The next prime is 33300011233. The reversal of 33300011221 is 12211000333.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (33300011209) and next prime (33300011233).

It can be written as a sum of positive squares in 2 ways, for example, as 22251688900 + 11048322321 = 149170^2 + 105111^2 .

It is a cyclic number.

It is not a de Polignac number, because 33300011221 - 2⁵ = 33300011189 is a prime.

It is a super-2 number, since 2×33300011221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33300011195 and 33300011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33300018221) 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 in 3 ways as a sum of consecutive naturals, for example, 574138096 + ... + 574138153.

It is an arithmetic number, because the mean of its divisors is an integer number (8612071875).

Almost surely, 2^33300011221 is an apocalyptic number.

It is an amenable number.

33300011221 is a deficient number, since it is larger than the sum of its proper divisors (1148276279).

33300011221 is a wasteful number, since it uses less digits than its factorization.

33300011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148276278.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 33300011221 its reverse (12211000333), we get a palindrome (45511011554).

The spelling of 33300011221 in words is "thirty-three billion, three hundred million, eleven thousand, two hundred twenty-one".