133003333221 has 12 divisors (see below), whose sum is σ = 194924995776. Its totient is φ = 80608080520.

The previous prime is 133003333219. The next prime is 133003333249. The reversal of 133003333221 is 122333300331.

It is not a de Polignac number, because 133003333221 - 2¹ = 133003333219 is a prime.

It is a super-3 number, since 3×133003333221³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133003333191 and 133003333200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133003333121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183199821 + ... + 183200546.

It is an arithmetic number, because the mean of its divisors is an integer number (16243749648).

Almost surely, 2^133003333221 is an apocalyptic number.

133003333221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133003333221 is a deficient number, since it is larger than the sum of its proper divisors (61921662555).

133003333221 is a wasteful number, since it uses less digits than its factorization.

133003333221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366400392 (or 366400381 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 133003333221 its reverse (122333300331), we get a palindrome (255336633552).

The spelling of 133003333221 in words is "one hundred thirty-three billion, three million, three hundred thirty-three thousand, two hundred twenty-one".