22105315 has 4 divisors (see below), whose sum is σ = 26526384. Its totient is φ = 17684248.

The previous prime is 22105313. The next prime is 22105327. The reversal of 22105315 is 51350122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22105315 - 2¹ = 22105313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22105292 and 22105301.

It is not an unprimeable number, because it can be changed into a prime (22105313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210527 + ... + 2210536.

It is an arithmetic number, because the mean of its divisors is an integer number (6631596).

Almost surely, 2^22105315 is an apocalyptic number.

22105315 is a deficient number, since it is larger than the sum of its proper divisors (4421069).

22105315 is an equidigital number, since it uses as much as digits as its factorization.

22105315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4421068.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 22105315 is about 4701.6289730263. The cubic root of 22105315 is about 280.6503378229.

Adding to 22105315 its reverse (51350122), we get a palindrome (73455437).

The spelling of 22105315 in words is "twenty-two million, one hundred five thousand, three hundred fifteen".