22106205 has 96 divisors (see below), whose sum is σ = 46096128. Its totient is φ = 9676800.

The previous prime is 22106159. The next prime is 22106209. The reversal of 22106205 is 50260122.

22106205 = 111² + 112² + ... + 407².

It is not a de Polignac number, because 22106205 - 2⁹ = 22105693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22106209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 311320 + ... + 311390.

It is an arithmetic number, because the mean of its divisors is an integer number (480168).

Almost surely, 2^22106205 is an apocalyptic number.

It is an amenable number.

22106205 is an abundant number, since it is smaller than the sum of its proper divisors (23989923).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22106205 is a wasteful number, since it uses less digits than its factorization.

22106205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 22106205 is about 4701.7236201206. The cubic root of 22106205 is about 280.6541042693.

Adding to 22106205 its reverse (50260122), we get a palindrome (72366327).

The spelling of 22106205 in words is "twenty-two million, one hundred six thousand, two hundred five".