22012102008 has 96 divisors (see below), whose sum is σ = 64232007840. Its totient is φ = 6769785600.

The previous prime is 22012102001. The next prime is 22012102051. The reversal of 22012102008 is 80020121022.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012102001) 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 23 ways as a sum of consecutive naturals, for example, 2713158 + ... + 2721258.

It is an arithmetic number, because the mean of its divisors is an integer number (669083415).

Almost surely, 2^22012102008 is an apocalyptic number.

It is an amenable number.

22012102008 is an abundant number, since it is smaller than the sum of its proper divisors (42219905832).

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

22012102008 is a wasteful number, since it uses less digits than its factorization.

22012102008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11029 (or 11022 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The spelling of 22012102008 in words is "twenty-two billion, twelve million, one hundred two thousand, eight".