221323210041 has 16 divisors (see below), whose sum is σ = 305327476800.
Its totient is φ = 142435677888.
The previous prime is 221323210037. The next prime is 221323210117. The reversal of 221323210041 is 140012323122.
It is not a de Polignac number, because 221323210041 - 22 = 221323210037 is a prime.
It is not an unprimeable number, because it can be changed into a prime (221323210021) 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, 274890 + ... + 719868.
It is an arithmetic number, because the mean of its divisors is an integer number (19082967300).
Almost surely, 2221323210041 is an apocalyptic number.
It is an amenable number.
221323210041 is a deficient number, since it is larger than the sum of its proper divisors (84004266759).
221323210041 is a wasteful number, since it uses less digits than its factorization.
221323210041 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 450728.
The product of its (nonzero) digits is 576, while the sum is 21.
Adding to 221323210041 its reverse (140012323122), we get a palindrome (361335533163).
The spelling of 221323210041 in words is "two hundred twenty-one billion, three hundred twenty-three million, two hundred ten thousand, forty-one".