133120322320221 has 6 divisors (see below), whose sum is σ = 192284910018110. Its totient is φ = 88746881546808.

The previous prime is 133120322320187. The next prime is 133120322320247. The reversal of 133120322320221 is 122023223021331.

133120322320221 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 203 + 2 + 232 + 0 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 127579058108100 + 5541264212121 = 11295090^2 + 2353989^2 .

It is not a de Polignac number, because 133120322320221 - 2⁶ = 133120322320157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133120322320421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7395573462226 + ... + 7395573462243.

Almost surely, 2^{133120322320221} is an apocalyptic number.

It is an amenable number.

133120322320221 is a deficient number, since it is larger than the sum of its proper divisors (59164587697889).

133120322320221 is a wasteful number, since it uses less digits than its factorization.

133120322320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14791146924475 (or 14791146924472 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 133120322320221 its reverse (122023223021331), we get a palindrome (255143545341552).

The spelling of 133120322320221 in words is "one hundred thirty-three trillion, one hundred twenty billion, three hundred twenty-two million, three hundred twenty thousand, two hundred twenty-one".