221222220012113 has 16 divisors (see below), whose sum is σ = 231961663180800. Its totient is φ = 210576903933264.

The previous prime is 221222220012091. The next prime is 221222220012127. The reversal of 221222220012113 is 311210022222122.

It is a cyclic number.

It is not a de Polignac number, because 221222220012113 - 2⁶ = 221222220012049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221222220012173) 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, 5852870 + ... + 21833472.

It is an arithmetic number, because the mean of its divisors is an integer number (14497603948800).

Almost surely, 2^{221222220012113} is an apocalyptic number.

221222220012113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

221222220012113 is a deficient number, since it is larger than the sum of its proper divisors (10739443168687).

221222220012113 is a wasteful number, since it uses less digits than its factorization.

221222220012113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15983548.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 221222220012113 its reverse (311210022222122), we get a palindrome (532432242234235).

The spelling of 221222220012113 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, two hundred twenty million, twelve thousand, one hundred thirteen".