214221423 has 16 divisors (see below), whose sum is σ = 311310720. Its totient is φ = 130238304.

The previous prime is 214221419. The next prime is 214221443. The reversal of 214221423 is 324122412.

214221423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 214221423 - 2² = 214221419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 214221423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214221443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29853 + ... + 36326.

It is an arithmetic number, because the mean of its divisors is an integer number (19456920).

Almost surely, 2^214221423 is an apocalyptic number.

214221423 is a deficient number, since it is larger than the sum of its proper divisors (97089297).

214221423 is a wasteful number, since it uses less digits than its factorization.

214221423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66278.

The product of its digits is 768, while the sum is 21.

The square root of 214221423 is about 14636.3049640270. The cubic root of 214221423 is about 598.3486285682.

Adding to 214221423 its reverse (324122412), we get a palindrome (538343835).

The spelling of 214221423 in words is "two hundred fourteen million, two hundred twenty-one thousand, four hundred twenty-three".