221210414 has 4 divisors (see below), whose sum is σ = 331815624. Its totient is φ = 110605206.

The previous prime is 221210413. The next prime is 221210419. The reversal of 221210414 is 414012122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 414012122 = 2 ⋅207006061.

It is a junction number, because it is equal to n+sod(n) for n = 221210392 and 221210401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221210413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55302602 + ... + 55302605.

It is an arithmetic number, because the mean of its divisors is an integer number (82953906).

Almost surely, 2^221210414 is an apocalyptic number.

221210414 is a deficient number, since it is larger than the sum of its proper divisors (110605210).

221210414 is a wasteful number, since it uses less digits than its factorization.

221210414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110605209.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 221210414 is about 14873.1440522843. The cubic root of 221210414 is about 604.7861767432.

Adding to 221210414 its reverse (414012122), we get a palindrome (635222536).

The spelling of 221210414 in words is "two hundred twenty-one million, two hundred ten thousand, four hundred fourteen".