22054215 has 8 divisors (see below), whose sum is σ = 35286768. Its totient is φ = 11762240.

The previous prime is 22054163. The next prime is 22054223. The reversal of 22054215 is 51245022.

It is a happy number.

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

It is not a de Polignac number, because 22054215 - 2¹⁰ = 22053191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22054191 and 22054200.

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, 735126 + ... + 735155.

It is an arithmetic number, because the mean of its divisors is an integer number (4410846).

Almost surely, 2^22054215 is an apocalyptic number.

22054215 is a deficient number, since it is larger than the sum of its proper divisors (13232553).

22054215 is a wasteful number, since it uses less digits than its factorization.

22054215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1470289.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22054215 is about 4696.1915420902. The cubic root of 22054215 is about 280.4339148018.

Adding to 22054215 its reverse (51245022), we get a palindrome (73299237).

The spelling of 22054215 in words is "twenty-two million, fifty-four thousand, two hundred fifteen".