221313020223 has 8 divisors (see below), whose sum is σ = 303059271088. Its totient is φ = 143554391424.

The previous prime is 221313020207. The next prime is 221313020251. The reversal of 221313020223 is 322020313122.

It is a happy number.

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

It is not a de Polignac number, because 221313020223 - 2⁴ = 221313020207 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 221313020223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221313020923) 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, 996905386 + ... + 996905607.

It is an arithmetic number, because the mean of its divisors is an integer number (37882408886).

Almost surely, 2^221313020223 is an apocalyptic number.

221313020223 is a deficient number, since it is larger than the sum of its proper divisors (81746250865).

221313020223 is a wasteful number, since it uses less digits than its factorization.

221313020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993811033.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221313020223 its reverse (322020313122), we get a palindrome (543333333345).

The spelling of 221313020223 in words is "two hundred twenty-one billion, three hundred thirteen million, twenty thousand, two hundred twenty-three".