220443240133 has 4 divisors (see below), whose sum is σ = 226401165580. Its totient is φ = 214485314688.

The previous prime is 220443240053. The next prime is 220443240139. The reversal of 220443240133 is 331042344022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183541982724 + 36901257409 = 428418^2 + 192097^2 .

It is a cyclic number.

It is not a de Polignac number, because 220443240133 - 2²⁵ = 220409685701 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 (220443240139) 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, 2978962668 + ... + 2978962741.

It is an arithmetic number, because the mean of its divisors is an integer number (56600291395).

Almost surely, 2^220443240133 is an apocalyptic number.

It is an amenable number.

220443240133 is a deficient number, since it is larger than the sum of its proper divisors (5957925447).

220443240133 is an equidigital number, since it uses as much as digits as its factorization.

220443240133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957925446.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 220443240133 its reverse (331042344022), we get a palindrome (551485584155).

The spelling of 220443240133 in words is "two hundred twenty billion, four hundred forty-three million, two hundred forty thousand, one hundred thirty-three".