22254215 has 8 divisors (see below), whose sum is σ = 26777088. Its totient is φ = 17755360.

The previous prime is 22254161. The next prime is 22254233. The reversal of 22254215 is 51245222.

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

It is not a de Polignac number, because 22254215 - 2¹⁰ = 22253191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3896 + ... + 7725.

It is an arithmetic number, because the mean of its divisors is an integer number (3347136).

Almost surely, 2^22254215 is an apocalyptic number.

22254215 is a deficient number, since it is larger than the sum of its proper divisors (4522873).

22254215 is a wasteful number, since it uses less digits than its factorization.

22254215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12009.

The product of its digits is 1600, while the sum is 23.

The square root of 22254215 is about 4717.4373339770. The cubic root of 22254215 is about 281.2790758418.

Adding to 22254215 its reverse (51245222), we get a palindrome (73499437).

The spelling of 22254215 in words is "twenty-two million, two hundred fifty-four thousand, two hundred fifteen".