27221845120 has 64 divisors (see below), whose sum is σ = 65508431040. Its totient is φ = 10816588800.

The previous prime is 27221845111. The next prime is 27221845141. The reversal of 27221845120 is 2154812272.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44202 + ... + 237481.

It is an arithmetic number, because the mean of its divisors is an integer number (1023569235).

Almost surely, 2^27221845120 is an apocalyptic number.

27221845120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27221845120 is an abundant number, since it is smaller than the sum of its proper divisors (38286585920).

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

27221845120 is a wasteful number, since it uses less digits than its factorization.

27221845120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281853 (or 281841 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The spelling of 27221845120 in words is "twenty-seven billion, two hundred twenty-one million, eight hundred forty-five thousand, one hundred twenty".