22421214 has 12 divisors (see below), whose sum is σ = 48579336. Its totient is φ = 7473732.

The previous prime is 22421183. The next prime is 22421233. The reversal of 22421214 is 41212422.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1245623 = 22421214 / (2 + 2 + 4 + 2 + 1 + 2 + 1 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 622794 + ... + 622829.

It is an arithmetic number, because the mean of its divisors is an integer number (4048278).

Almost surely, 2^22421214 is an apocalyptic number.

22421214 is an abundant number, since it is smaller than the sum of its proper divisors (26158122).

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

22421214 is a wasteful number, since it uses less digits than its factorization.

22421214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245631 (or 1245628 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 22421214 is about 4735.1044339064. The cubic root of 22421214 is about 281.9809101307.

Adding to 22421214 its reverse (41212422), we get a palindrome (63633636).

The spelling of 22421214 in words is "twenty-two million, four hundred twenty-one thousand, two hundred fourteen".