221102111013 has 16 divisors (see below), whose sum is σ = 342627970560. Its totient is φ = 124202637936.

The previous prime is 221102110997. The next prime is 221102111023. The reversal of 221102111013 is 310111201122.

It is not a de Polignac number, because 221102111013 - 2⁴ = 221102110997 is a prime.

It is a super-2 number, since 2×221102111013² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221102110983 and 221102111001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102111023) 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, 89224795 + ... + 89227272.

It is an arithmetic number, because the mean of its divisors is an integer number (21414248160).

Almost surely, 2^221102111013 is an apocalyptic number.

It is an amenable number.

221102111013 is a deficient number, since it is larger than the sum of its proper divisors (121525859547).

221102111013 is a wasteful number, since it uses less digits than its factorization.

221102111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178452136.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 221102111013 its reverse (310111201122), we get a palindrome (531213312135).

The spelling of 221102111013 in words is "two hundred twenty-one billion, one hundred two million, one hundred eleven thousand, thirteen".