22123005 has 16 divisors (see below), whose sum is σ = 35458560. Its totient is φ = 11778368.

The previous prime is 22122983. The next prime is 22123021. The reversal of 22123005 is 50032122.

It is a cyclic number.

It is not a de Polignac number, because 22123005 - 2¹¹ = 22120957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12091 + ... + 13799.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 2^22123005 is an apocalyptic number.

It is an amenable number.

22123005 is a deficient number, since it is larger than the sum of its proper divisors (13335555).

22123005 is a wasteful number, since it uses less digits than its factorization.

22123005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 22123005 is about 4703.5098596686. The cubic root of 22123005 is about 280.7251822772.

Adding to 22123005 its reverse (50032122), we get a palindrome (72155127).

The spelling of 22123005 in words is "twenty-two million, one hundred twenty-three thousand, five".