221440444341 has 16 divisors (see below), whose sum is σ = 298530045504. Its totient is φ = 145993688064.

The previous prime is 221440444307. The next prime is 221440444373. The reversal of 221440444341 is 143444044122.

It is not a de Polignac number, because 221440444341 - 2²² = 221436250037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221440444741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412570 + ... + 783003.

It is an arithmetic number, because the mean of its divisors is an integer number (18658127844).

Almost surely, 2^221440444341 is an apocalyptic number.

It is an amenable number.

221440444341 is a deficient number, since it is larger than the sum of its proper divisors (77089601163).

221440444341 is a wasteful number, since it uses less digits than its factorization.

221440444341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196260.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 221440444341 its reverse (143444044122), we get a palindrome (364884488463).

The spelling of 221440444341 in words is "two hundred twenty-one billion, four hundred forty million, four hundred forty-four thousand, three hundred forty-one".