221032300133 has 4 divisors (see below), whose sum is σ = 221752275360. Its totient is φ = 220312324908.

The previous prime is 221032300067. The next prime is 221032300157. The reversal of 221032300133 is 331003230122.

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 221032300133 - 2¹⁰ = 221032299109 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 (221032305133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359987153 + ... + 359987766.

It is an arithmetic number, because the mean of its divisors is an integer number (55438068840).

Almost surely, 2^221032300133 is an apocalyptic number.

It is an amenable number.

221032300133 is a deficient number, since it is larger than the sum of its proper divisors (719975227).

221032300133 is an equidigital number, since it uses as much as digits as its factorization.

221032300133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719975226.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 221032300133 its reverse (331003230122), we get a palindrome (552035530255).

The spelling of 221032300133 in words is "two hundred twenty-one billion, thirty-two million, three hundred thousand, one hundred thirty-three".