221113301131 has 4 divisors (see below), whose sum is σ = 221206325512. Its totient is φ = 221020276752.

The previous prime is 221113301117. The next prime is 221113301159. The reversal of 221113301131 is 131103311122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221113301131 is a prime.

It is a super-2 number, since 2×221113301131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221113301099 and 221113301108.

It is not an unprimeable number, because it can be changed into a prime (221113301831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46508625 + ... + 46513378.

It is an arithmetic number, because the mean of its divisors is an integer number (55301581378).

Almost surely, 2^221113301131 is an apocalyptic number.

221113301131 is a deficient number, since it is larger than the sum of its proper divisors (93024381).

221113301131 is an equidigital number, since it uses as much as digits as its factorization.

221113301131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93024380.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 221113301131 its reverse (131103311122), we get a palindrome (352216612253).

Subtracting from 221113301131 its reverse (131103311122), we obtain a palindrome (90009990009).

The spelling of 221113301131 in words is "two hundred twenty-one billion, one hundred thirteen million, three hundred one thousand, one hundred thirty-one".