221024321011 has 12 divisors (see below), whose sum is σ = 240858477552. Its totient is φ = 202722919776.

The previous prime is 221024321003. The next prime is 221024321029. The reversal of 221024321011 is 110123420122.

It is not a de Polignac number, because 221024321011 - 2³ = 221024321003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221024321011.

It is not an unprimeable number, because it can be changed into a prime (221024321051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4138551 + ... + 4191616.

It is an arithmetic number, because the mean of its divisors is an integer number (20071539796).

Almost surely, 2^221024321011 is an apocalyptic number.

221024321011 is a deficient number, since it is larger than the sum of its proper divisors (19834156541).

221024321011 is a wasteful number, since it uses less digits than its factorization.

221024321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330350 (or 8330337 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 221024321011 its reverse (110123420122), we get a palindrome (331147741133).

The spelling of 221024321011 in words is "two hundred twenty-one billion, twenty-four million, three hundred twenty-one thousand, eleven".