221034443539 has 24 divisors (see below), whose sum is σ = 278501010480. Its totient is φ = 173873415744.

The previous prime is 221034443533. The next prime is 221034443561. The reversal of 221034443539 is 935344430122.

It is a happy number.

It is not a de Polignac number, because 221034443539 - 2⁵ = 221034443507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221034443533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 892669 + ... + 1113070.

It is an arithmetic number, because the mean of its divisors is an integer number (11604208770).

Almost surely, 2^221034443539 is an apocalyptic number.

221034443539 is a deficient number, since it is larger than the sum of its proper divisors (57466566941).

221034443539 is a wasteful number, since it uses less digits than its factorization.

221034443539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005939 (or 2005932 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 221034443539 in words is "two hundred twenty-one billion, thirty-four million, four hundred forty-three thousand, five hundred thirty-nine".