22122212202 has 96 divisors (see below), whose sum is σ = 51651025920. Its totient is φ = 6820964640.

The previous prime is 22122212201. The next prime is 22122212213. The reversal of 22122212202 is 20221222122.

22122212202 is a `hidden beast` number, since 221 + 2 + 221 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22122212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7890933 + ... + 7893735.

It is an arithmetic number, because the mean of its divisors is an integer number (538031520).

Almost surely, 2^22122212202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22122212202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25825512960).

22122212202 is an abundant number, since it is smaller than the sum of its proper divisors (29528813718).

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

22122212202 is a wasteful number, since it uses less digits than its factorization.

22122212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22122212202 its reverse (20221222122), we get a palindrome (42343434324).

The spelling of 22122212202 in words is "twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, two hundred two".