221104535013 has 24 divisors (see below), whose sum is σ = 325327833792. Its totient is φ = 144680070528.

The previous prime is 221104534993. The next prime is 221104535027. The reversal of 221104535013 is 310535401122.

221104535013 is a `hidden beast` number, since 2 + 2 + 1 + 104 + 53 + 501 + 3 = 666.

It is not a de Polignac number, because 221104535013 - 2⁹ = 221104534501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221104535083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 950631 + ... + 1160132.

It is an arithmetic number, because the mean of its divisors is an integer number (13555326408).

Almost surely, 2^221104535013 is an apocalyptic number.

It is an amenable number.

221104535013 is a deficient number, since it is larger than the sum of its proper divisors (104223298779).

221104535013 is a wasteful number, since it uses less digits than its factorization.

221104535013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110985 (or 2110982 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 221104535013 its reverse (310535401122), we get a palindrome (531639936135).

The spelling of 221104535013 in words is "two hundred twenty-one billion, one hundred four million, five hundred thirty-five thousand, thirteen".