22121200168 has 32 divisors (see below), whose sum is σ = 42017472000. Its totient is φ = 10916642880.

The previous prime is 22121200163. The next prime is 22121200169. The reversal of 22121200168 is 86100212122.

It is not an unprimeable number, because it can be changed into a prime (22121200163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2573638 + ... + 2582218.

It is an arithmetic number, because the mean of its divisors is an integer number (1313046000).

Almost surely, 2^22121200168 is an apocalyptic number.

It is an amenable number.

22121200168 is a deficient number, since it is larger than the sum of its proper divisors (19896271832).

22121200168 is a wasteful number, since it uses less digits than its factorization.

22121200168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12745 (or 12741 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The spelling of 22121200168 in words is "twenty-two billion, one hundred twenty-one million, two hundred thousand, one hundred sixty-eight".