133323333221 has 8 divisors (see below), whose sum is σ = 152024796504. Its totient is φ = 115828416000.

The previous prime is 133323333211. The next prime is 133323333239. The reversal of 133323333221 is 122333323331.

It can be written as a sum of positive squares in 4 ways, for example, as 546904996 + 132776428225 = 23386^2 + 364385^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133323333221 - 2³⁴ = 116143464037 is a prime.

It is a super-2 number, since 2×133323333221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133323333211) 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 7 ways as a sum of consecutive naturals, for example, 301636280 + ... + 301636721.

It is an arithmetic number, because the mean of its divisors is an integer number (19003099563).

Almost surely, 2^133323333221 is an apocalyptic number.

It is an amenable number.

133323333221 is a deficient number, since it is larger than the sum of its proper divisors (18701463283).

133323333221 is a wasteful number, since it uses less digits than its factorization.

133323333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603273031.

The product of its digits is 17496, while the sum is 29.

Adding to 133323333221 its reverse (122333323331), we get a palindrome (255656656552).

The spelling of 133323333221 in words is "one hundred thirty-three billion, three hundred twenty-three million, three hundred thirty-three thousand, two hundred twenty-one".