221223202113 has 16 divisors (see below), whose sum is σ = 310599936320. Its totient is φ = 139669862976.

The previous prime is 221223202103. The next prime is 221223202121. The reversal of 221223202113 is 311202322122.

It is not a de Polignac number, because 221223202113 - 2⁴ = 221223202097 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 221223202113.

It is not an unprimeable number, because it can be changed into a prime (221223202103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 534370 + ... + 853227.

It is an arithmetic number, because the mean of its divisors is an integer number (19412496020).

Almost surely, 2^221223202113 is an apocalyptic number.

It is an amenable number.

221223202113 is a deficient number, since it is larger than the sum of its proper divisors (89376734207).

221223202113 is a wasteful number, since it uses less digits than its factorization.

221223202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390416.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221223202113 its reverse (311202322122), we get a palindrome (532425524235).

The spelling of 221223202113 in words is "two hundred twenty-one billion, two hundred twenty-three million, two hundred two thousand, one hundred thirteen".