221245524342313 has 8 divisors (see below), whose sum is σ = 221483055830400. Its totient is φ = 221007995863200.

The previous prime is 221245524342281. The next prime is 221245524342319. The reversal of 221245524342313 is 313243425542122.

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

It is a cyclic number.

It is not a de Polignac number, because 221245524342313 - 2⁵ = 221245524342281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221245524342313.

It is not an unprimeable number, because it can be changed into a prime (221245524342319) 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, 166264788 + ... + 167590186.

It is an arithmetic number, because the mean of its divisors is an integer number (27685381978800).

Almost surely, 2^{221245524342313} is an apocalyptic number.

It is an amenable number.

221245524342313 is a deficient number, since it is larger than the sum of its proper divisors (237531488087).

221245524342313 is a wasteful number, since it uses less digits than its factorization.

221245524342313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504487.

The product of its digits is 1382400, while the sum is 43.

Adding to 221245524342313 its reverse (313243425542122), we get a palindrome (534488949884435).

The spelling of 221245524342313 in words is "two hundred twenty-one trillion, two hundred forty-five billion, five hundred twenty-four million, three hundred forty-two thousand, three hundred thirteen".