214121222 has 32 divisors (see below), whose sum is σ = 409121280. Its totient is φ = 81820800.

The previous prime is 214121197. The next prime is 214121233. The reversal of 214121222 is 222121412.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 214121222.

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 15 ways as a sum of consecutive naturals, for example, 19154 + ... + 28197.

It is an arithmetic number, because the mean of its divisors is an integer number (12785040).

Almost surely, 2^214121222 is an apocalyptic number.

214121222 is a deficient number, since it is larger than the sum of its proper divisors (195000058).

214121222 is a wasteful number, since it uses less digits than its factorization.

214121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47396.

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

The square root of 214121222 is about 14632.8815344074. The cubic root of 214121222 is about 598.2553224920.

Adding to 214121222 its reverse (222121412), we get a palindrome (436242634).

The spelling of 214121222 in words is "two hundred fourteen million, one hundred twenty-one thousand, two hundred twenty-two".