222110421 has 8 divisors (see below), whose sum is σ = 318927840. Its totient is φ = 136683312.

The previous prime is 222110419. The next prime is 222110429. The reversal of 222110421 is 124011222.

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

It is not a de Polignac number, because 222110421 - 2¹ = 222110419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222110421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222110429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2847531 + ... + 2847608.

It is an arithmetic number, because the mean of its divisors is an integer number (39865980).

Almost surely, 2^222110421 is an apocalyptic number.

It is an amenable number.

222110421 is a deficient number, since it is larger than the sum of its proper divisors (96817419).

222110421 is a wasteful number, since it uses less digits than its factorization.

222110421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695155.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 222110421 is about 14903.3694512348. The cubic root of 222110421 is about 605.6052690862.

Adding to 222110421 its reverse (124011222), we get a palindrome (346121643).

The spelling of 222110421 in words is "two hundred twenty-two million, one hundred ten thousand, four hundred twenty-one".