22099122 has 32 divisors (see below), whose sum is σ = 49627200. Its totient is φ = 7288704.

The previous prime is 22099087. The next prime is 22099127. The reversal of 22099122 is 22199022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22099127) 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 15 ways as a sum of consecutive naturals, for example, 3129 + ... + 7347.

It is an arithmetic number, because the mean of its divisors is an integer number (1550850).

Almost surely, 2^22099122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22099122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24813600).

22099122 is an abundant number, since it is smaller than the sum of its proper divisors (27528078).

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

22099122 is a wasteful number, since it uses less digits than its factorization.

22099122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327 (or 4321 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 22099122 is about 4700.9703253690. The cubic root of 22099122 is about 280.6241264814.

The spelling of 22099122 in words is "twenty-two million, ninety-nine thousand, one hundred twenty-two".