133220001321 has 64 divisors (see below), whose sum is σ = 222890976000. Its totient is φ = 77898723840.

The previous prime is 133220001319. The next prime is 133220001347. The reversal of 133220001321 is 123100022331.

133220001321 is a `hidden beast` number, since 1 + 332 + 200 + 0 + 132 + 1 = 666.

It is not a de Polignac number, because 133220001321 - 2¹ = 133220001319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133220001294 and 133220001303.

It is not an unprimeable number, because it can be changed into a prime (133220001301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13853511 + ... + 13863123.

It is an arithmetic number, because the mean of its divisors is an integer number (3482671500).

Almost surely, 2^133220001321 is an apocalyptic number.

133220001321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133220001321 is a deficient number, since it is larger than the sum of its proper divisors (89670974679).

133220001321 is a wasteful number, since it uses less digits than its factorization.

133220001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11271 (or 11265 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 133220001321 its reverse (123100022331), we get a palindrome (256320023652).

The spelling of 133220001321 in words is "one hundred thirty-three billion, two hundred twenty million, one thousand, three hundred twenty-one".