133031002221321 has 24 divisors (see below), whose sum is σ = 187525961390304. Its totient is φ = 83873965432320.

The previous prime is 133031002221277. The next prime is 133031002221379. The reversal of 133031002221321 is 123122200130331.

It is not a de Polignac number, because 133031002221321 - 2¹⁷ = 133031002090249 is a prime.

It is a super-2 number, since 2×133031002221321² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133031002221291 and 133031002221300.

It is not an unprimeable number, because it can be changed into a prime (133031002221121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105818475 + ... + 107068256.

It is an arithmetic number, because the mean of its divisors is an integer number (7813581724596).

Almost surely, 2^{133031002221321} is an apocalyptic number.

It is an amenable number.

133031002221321 is a deficient number, since it is larger than the sum of its proper divisors (54494959168983).

133031002221321 is a wasteful number, since it uses less digits than its factorization.

133031002221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212887349 (or 212887330 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 133031002221321 its reverse (123122200130331), we get a palindrome (256153202351652).

The spelling of 133031002221321 in words is "one hundred thirty-three trillion, thirty-one billion, two million, two hundred twenty-one thousand, three hundred twenty-one".