221107840423213 has 8 divisors (see below), whose sum is σ = 225279985435128. Its totient is φ = 216935706484224.

The previous prime is 221107840423207. The next prime is 221107840423229. The reversal of 221107840423213 is 312324048701122.

It can be written as a sum of positive squares in 4 ways, for example, as 25546019250249 + 195561821172964 = 5054307^2 + 13984342^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221107840423213 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 (221107841423213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45368581 + ... + 50005237.

It is an arithmetic number, because the mean of its divisors is an integer number (28159998179391).

Almost surely, 2^{221107840423213} is an apocalyptic number.

It is an amenable number.

221107840423213 is a deficient number, since it is larger than the sum of its proper divisors (4172145011915).

221107840423213 is an equidigital number, since it uses as much as digits as its factorization.

221107840423213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5536463.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 221107840423213 in words is "two hundred twenty-one trillion, one hundred seven billion, eight hundred forty million, four hundred twenty-three thousand, two hundred thirteen".