221013241444 has 24 divisors (see below), whose sum is σ = 388633795200. Its totient is φ = 109975592160.

The previous prime is 221013241433. The next prime is 221013241451. The reversal of 221013241444 is 444142310122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1478367 + ... + 1620985.

It is an arithmetic number, because the mean of its divisors is an integer number (16193074800).

Almost surely, 2^221013241444 is an apocalyptic number.

It is an amenable number.

221013241444 is a deficient number, since it is larger than the sum of its proper divisors (167620553756).

221013241444 is a wasteful number, since it uses less digits than its factorization.

221013241444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144483 (or 144481 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 221013241444 its reverse (444142310122), we get a palindrome (665155551566).

The spelling of 221013241444 in words is "two hundred twenty-one billion, thirteen million, two hundred forty-one thousand, four hundred forty-four".