22222202022 has 24 divisors (see below), whose sum is σ = 48293579880. Its totient is φ = 7385019840.

The previous prime is 22222202021. The next prime is 22222202027. The reversal of 22222202022 is 22020222222.

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

It is a junction number, because it is equal to n+sod(n) for n = 22222201986 and 22222202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222202021) 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 11 ways as a sum of consecutive naturals, for example, 1858947 + ... + 1870862.

It is an arithmetic number, because the mean of its divisors is an integer number (2012232495).

Almost surely, 2^22222202022 is an apocalyptic number.

22222202022 is an abundant number, since it is smaller than the sum of its proper divisors (26071377858).

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

22222202022 is a wasteful number, since it uses less digits than its factorization.

22222202022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730148 (or 3730145 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22222202022 its reverse (22020222222), we get a palindrome (44242424244).

The spelling of 22222202022 in words is "twenty-two billion, two hundred twenty-two million, two hundred two thousand, twenty-two".