133203232221 has 8 divisors (see below), whose sum is σ = 177632994144. Its totient is φ = 88787812560.

The previous prime is 133203232219. The next prime is 133203232223. The reversal of 133203232221 is 122232302331.

It is an interprime number because it is at equal distance from previous prime (133203232219) and next prime (133203232223).

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

It is not a de Polignac number, because 133203232221 - 2¹ = 133203232219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133203232191 and 133203232200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133203232223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3563875 + ... + 3601056.

It is an arithmetic number, because the mean of its divisors is an integer number (22204124268).

Almost surely, 2^133203232221 is an apocalyptic number.

It is an amenable number.

133203232221 is a deficient number, since it is larger than the sum of its proper divisors (44429761923).

133203232221 is an equidigital number, since it uses as much as digits as its factorization.

133203232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171131.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 133203232221 its reverse (122232302331), we get a palindrome (255435534552).

The spelling of 133203232221 in words is "one hundred thirty-three billion, two hundred three million, two hundred thirty-two thousand, two hundred twenty-one".