221414131 has 4 divisors (see below), whose sum is σ = 221583064. Its totient is φ = 221245200.

The previous prime is 221414129. The next prime is 221414143. The reversal of 221414131 is 131414122.

221414131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 221414131 - 2¹ = 221414129 is a prime.

It is a super-2 number, since 2×221414131² = 98048434812970322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221414099 and 221414108.

It is not an unprimeable number, because it can be changed into a prime (221414161) 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, 82485 + ... + 85126.

It is an arithmetic number, because the mean of its divisors is an integer number (55395766).

Almost surely, 2^221414131 is an apocalyptic number.

221414131 is a deficient number, since it is larger than the sum of its proper divisors (168933).

221414131 is a wasteful number, since it uses less digits than its factorization.

221414131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168932.

The product of its digits is 192, while the sum is 19.

The square root of 221414131 is about 14879.9909610188. The cubic root of 221414131 is about 604.9717729243.

Adding to 221414131 its reverse (131414122), we get a palindrome (352828253).

Subtracting from 221414131 its reverse (131414122), we obtain a palindrome (90000009).

The spelling of 221414131 in words is "two hundred twenty-one million, four hundred fourteen thousand, one hundred thirty-one".