214222134 has 64 divisors (see below), whose sum is σ = 521427456. Its totient is φ = 57275904.

The previous prime is 214222103. The next prime is 214222163. The reversal of 214222134 is 431222412.

It is a super-2 number, since 2×214222134² = 91782245391027912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 214222134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139897 + ... + 141419.

It is an arithmetic number, because the mean of its divisors is an integer number (8147304).

Almost surely, 2^214222134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 214222134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260713728).

214222134 is an abundant number, since it is smaller than the sum of its proper divisors (307205322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

214222134 is a wasteful number, since it uses less digits than its factorization.

214222134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749.

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

The square root of 214222134 is about 14636.3292529240. The cubic root of 214222134 is about 598.3492905396.

Adding to 214222134 its reverse (431222412), we get a palindrome (645444546).

The spelling of 214222134 in words is "two hundred fourteen million, two hundred twenty-two thousand, one hundred thirty-four".