221013021313 has 8 divisors (see below), whose sum is σ = 252898536960. Its totient is φ = 189205562400.

The previous prime is 221013021283. The next prime is 221013021347. The reversal of 221013021313 is 313120310122.

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-221013021313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221013021353) 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, 19508113 + ... + 19519438.

It is an arithmetic number, because the mean of its divisors is an integer number (31612317120).

Almost surely, 2^221013021313 is an apocalyptic number.

It is an amenable number.

221013021313 is a deficient number, since it is larger than the sum of its proper divisors (31885515647).

221013021313 is an equidigital number, since it uses as much as digits as its factorization.

221013021313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39028367.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 221013021313 its reverse (313120310122), we get a palindrome (534133331435).

The spelling of 221013021313 in words is "two hundred twenty-one billion, thirteen million, twenty-one thousand, three hundred thirteen".