221442044243113 has 4 divisors (see below), whose sum is σ = 221691697056000. Its totient is φ = 221192391430228.

The previous prime is 221442044243003. The next prime is 221442044243177. The reversal of 221442044243113 is 311342440244122.

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 221442044243113 - 2¹³ = 221442044234921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221442044213113) 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, 124826405113 + ... + 124826406886.

It is an arithmetic number, because the mean of its divisors is an integer number (55422924264000).

Almost surely, 2^{221442044243113} is an apocalyptic number.

It is an amenable number.

221442044243113 is a deficient number, since it is larger than the sum of its proper divisors (249652812887).

221442044243113 is an equidigital number, since it uses as much as digits as its factorization.

221442044243113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249652812886.

The product of its (nonzero) digits is 147456, while the sum is 37.

Adding to 221442044243113 its reverse (311342440244122), we get a palindrome (532784484487235).

The spelling of 221442044243113 in words is "two hundred twenty-one trillion, four hundred forty-two billion, forty-four million, two hundred forty-three thousand, one hundred thirteen".