221411413 has 4 divisors (see below), whose sum is σ = 221463468. Its totient is φ = 221359360.

The previous prime is 221411401. The next prime is 221411423. The reversal of 221411413 is 314114122.

221411413 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 can be written as a sum of positive squares in 2 ways, for example, as 206841924 + 14569489 = 14382^2 + 3817^2 .

It is a cyclic number.

It is not a de Polignac number, because 221411413 - 2⁹ = 221410901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221411423) 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, 19018 + ... + 28363.

It is an arithmetic number, because the mean of its divisors is an integer number (55365867).

Almost surely, 2^221411413 is an apocalyptic number.

It is an amenable number.

221411413 is a deficient number, since it is larger than the sum of its proper divisors (52055).

221411413 is an equidigital number, since it uses as much as digits as its factorization.

221411413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52054.

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

The square root of 221411413 is about 14879.8996300378. The cubic root of 221411413 is about 604.9692974425.

Adding to 221411413 its reverse (314114122), we get a palindrome (535525535).

The spelling of 221411413 in words is "two hundred twenty-one million, four hundred eleven thousand, four hundred thirteen".