221223013133 has 4 divisors (see below), whose sum is σ = 221254165248. Its totient is φ = 221191861020.

The previous prime is 221223013087. The next prime is 221223013147. The reversal of 221223013133 is 331310322122.

221223013133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 221223013133 - 2⁸ = 221223012877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221223013099 and 221223013108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221223013733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15565403 + ... + 15579608.

It is an arithmetic number, because the mean of its divisors is an integer number (55313541312).

Almost surely, 2^221223013133 is an apocalyptic number.

It is an amenable number.

221223013133 is a deficient number, since it is larger than the sum of its proper divisors (31152115).

221223013133 is an equidigital number, since it uses as much as digits as its factorization.

221223013133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31152114.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221223013133 its reverse (331310322122), we get a palindrome (552533335255).

The spelling of 221223013133 in words is "two hundred twenty-one billion, two hundred twenty-three million, thirteen thousand, one hundred thirty-three".