22121651120 has 20 divisors (see below), whose sum is σ = 51432839040. Its totient is φ = 8848660416.

The previous prime is 22121651077. The next prime is 22121651171. The reversal of 22121651120 is 2115612122.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 138260240 + ... + 138260399.

It is an arithmetic number, because the mean of its divisors is an integer number (2571641952).

Almost surely, 2^22121651120 is an apocalyptic number.

22121651120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121651120 is an abundant number, since it is smaller than the sum of its proper divisors (29311187920).

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

22121651120 is a wasteful number, since it uses less digits than its factorization.

22121651120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276520652 (or 276520646 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 22121651120 in words is "twenty-two billion, one hundred twenty-one million, six hundred fifty-one thousand, one hundred twenty".