221334144399 has 6 divisors (see below), whose sum is σ = 319704875256. Its totient is φ = 147556096260.

The previous prime is 221334144397. The next prime is 221334144403. The reversal of 221334144399 is 993441433122.

221334144399 is a `hidden beast` number, since 2 + 213 + 3 + 4 + 1 + 44 + 399 = 666.

It is not a de Polignac number, because 221334144399 - 2¹ = 221334144397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221334144397) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 12296341347 + ... + 12296341364.

It is an arithmetic number, because the mean of its divisors is an integer number (53284145876).

Almost surely, 2^221334144399 is an apocalyptic number.

221334144399 is a deficient number, since it is larger than the sum of its proper divisors (98370730857).

221334144399 is a wasteful number, since it uses less digits than its factorization.

221334144399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24592682717 (or 24592682714 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The spelling of 221334144399 in words is "two hundred twenty-one billion, three hundred thirty-four million, one hundred forty-four thousand, three hundred ninety-nine".