13114111221 has 16 divisors (see below), whose sum is σ = 19841683200. Its totient is φ = 8556724224.

The previous prime is 13114111217. The next prime is 13114111249. The reversal of 13114111221 is 12211141131.

13114111221 is a `hidden beast` number, since 1 + 31 + 1 + 411 + 1 + 221 = 666.

It is not a de Polignac number, because 13114111221 - 2² = 13114111217 is a prime.

It is a super-2 number, since 2×13114111221² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13114111194 and 13114111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13114111261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5165836 + ... + 5168373.

It is an arithmetic number, because the mean of its divisors is an integer number (1240105200).

Almost surely, 2^13114111221 is an apocalyptic number.

It is an amenable number.

13114111221 is a deficient number, since it is larger than the sum of its proper divisors (6727571979).

13114111221 is a wasteful number, since it uses less digits than its factorization.

13114111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10334265 (or 10334259 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

Adding to 13114111221 its reverse (12211141131), we get a palindrome (25325252352).

The spelling of 13114111221 in words is "thirteen billion, one hundred fourteen million, one hundred eleven thousand, two hundred twenty-one".