22148389512 has 36 divisors (see below), whose sum is σ = 59988641895. Its totient is φ = 7382375568.

The previous prime is 22148389499. The next prime is 22148389517. The reversal of 22148389512 is 21598384122.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

22148389512 is a `hidden beast` number, since 2 + 214 + 8 + 389 + 51 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11074194756 + 11074194756 = 105234^2 + 105234^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=105234.

It is not an unprimeable number, because it can be changed into a prime (22148389517) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 1254039 + ... + 1271577.

Almost surely, 2^22148389512 is an apocalyptic number.

It is an amenable number.

22148389512 is an abundant number, since it is smaller than the sum of its proper divisors (37840252383).

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

22148389512 is an frugal number, since it uses more digits than its factorization.

22148389512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35090 (or 17544 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 22148389512 in words is "twenty-two billion, one hundred forty-eight million, three hundred eighty-nine thousand, five hundred twelve".