10320240221 has 4 divisors (see below), whose sum is σ = 10420436832. Its totient is φ = 10220043612.

The previous prime is 10320240187. The next prime is 10320240299. The reversal of 10320240221 is 12204202301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10320240221 - 2²² = 10316045917 is a prime.

It is a super-2 number, since 2×10320240221² (a number of 21 digits) contains 22 as substring.

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 10320240221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10320240521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50098151 + ... + 50098356.

It is an arithmetic number, because the mean of its divisors is an integer number (2605109208).

Almost surely, 2^10320240221 is an apocalyptic number.

It is an amenable number.

10320240221 is a deficient number, since it is larger than the sum of its proper divisors (100196611).

10320240221 is a wasteful number, since it uses less digits than its factorization.

10320240221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100196610.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10320240221 its reverse (12204202301), we get a palindrome (22524442522).

The spelling of 10320240221 in words is "ten billion, three hundred twenty million, two hundred forty thousand, two hundred twenty-one".