5721221399112 has 84 divisors (see below), whose sum is σ = 16084091171385. Its totient is φ = 1907012911680.

The previous prime is 5721221399099. The next prime is 5721221399129. The reversal of 5721221399112 is 2119931221275.

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.

5721221399112 is a `hidden beast` number, since 5 + 7 + 21 + 221 + 399 + 1 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5709452186916 + 11769212196 = 2389446^2 + 108486^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1691334.

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 20 ways as a sum of consecutive naturals, for example, 182648412 + ... + 182679732.

Almost surely, 2^{5721221399112} is an apocalyptic number.

It is an amenable number.

5721221399112 is an abundant number, since it is smaller than the sum of its proper divisors (10362869772273).

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

5721221399112 is an frugal number, since it uses more digits than its factorization.

5721221399112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62666 (or 31326 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The spelling of 5721221399112 in words is "five trillion, seven hundred twenty-one billion, two hundred twenty-one million, three hundred ninety-nine thousand, one hundred twelve".