221001013321133 has 4 divisors (see below), whose sum is σ = 228130078267008. Its totient is φ = 213871948375260.

The previous prime is 221001013321111. The next prime is 221001013321181. The reversal of 221001013321133 is 331123310100122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221001013321133 - 2⁸ = 221001013320877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221001013321099 and 221001013321108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221001013323133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3564532472891 + ... + 3564532472952.

It is an arithmetic number, because the mean of its divisors is an integer number (57032519566752).

Almost surely, 2^{221001013321133} is an apocalyptic number.

It is an amenable number.

221001013321133 is a deficient number, since it is larger than the sum of its proper divisors (7129064945875).

221001013321133 is an equidigital number, since it uses as much as digits as its factorization.

221001013321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129064945874.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 221001013321133 its reverse (331123310100122), we get a palindrome (552124323421255).

The spelling of 221001013321133 in words is "two hundred twenty-one trillion, one billion, thirteen million, three hundred twenty-one thousand, one hundred thirty-three".