133031110221 has 12 divisors (see below), whose sum is σ = 192290535580. Its totient is φ = 88625335680.

The previous prime is 133031110187. The next prime is 133031110237. The reversal of 133031110221 is 122011130331.

133031110221 is a `hidden beast` number, since 1 + 330 + 3 + 1 + 110 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64014566121 + 69016544100 = 253011^2 + 262710^2 .

It is not a de Polignac number, because 133031110221 - 2²⁷ = 132896892493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133031110194 and 133031110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031110921) 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, 5159020 + ... + 5184741.

Almost surely, 2^133031110221 is an apocalyptic number.

It is an amenable number.

133031110221 is a deficient number, since it is larger than the sum of its proper divisors (59259425359).

133031110221 is a wasteful number, since it uses less digits than its factorization.

133031110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10345196 (or 10345193 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 133031110221 its reverse (122011130331), we get a palindrome (255042240552).

The spelling of 133031110221 in words is "one hundred thirty-three billion, thirty-one million, one hundred ten thousand, two hundred twenty-one".