22122105 has 16 divisors (see below), whose sum is σ = 35458560. Its totient is φ = 11777408.

The previous prime is 22122103. The next prime is 22122169. The reversal of 22122105 is 50122122.

It is a cyclic number.

It is not a de Polignac number, because 22122105 - 2¹ = 22122103 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (22122103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11224 + ... + 13046.

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

Almost surely, 2^22122105 is an apocalyptic number.

It is an amenable number.

22122105 is a deficient number, since it is larger than the sum of its proper divisors (13336455).

22122105 is a wasteful number, since it uses less digits than its factorization.

22122105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 22122105 is about 4703.4141854615. The cubic root of 22122105 is about 280.7213754392.

Adding to 22122105 its reverse (50122122), we get a palindrome (72244227).

The spelling of 22122105 in words is "twenty-two million, one hundred twenty-two thousand, one hundred five".