221422414 has 8 divisors (see below), whose sum is σ = 334558368. Its totient is φ = 109902960.

The previous prime is 221422379. The next prime is 221422417. The reversal of 221422414 is 414224122.

221422414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422417) 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, 403782 + ... + 404329.

It is an arithmetic number, because the mean of its divisors is an integer number (41819796).

Almost surely, 2^221422414 is an apocalyptic number.

221422414 is a deficient number, since it is larger than the sum of its proper divisors (113135954).

221422414 is a wasteful number, since it uses less digits than its factorization.

221422414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808250.

The product of its digits is 1024, while the sum is 22.

The square root of 221422414 is about 14880.2692851978. The cubic root of 221422414 is about 604.9793167348.

Adding to 221422414 its reverse (414224122), we get a palindrome (635646536).

The spelling of 221422414 in words is "two hundred twenty-one million, four hundred twenty-two thousand, four hundred fourteen".