10123320221 has 8 divisors (see below), whose sum is σ = 11574735744. Its totient is φ = 8673211440.

The previous prime is 10123320199. The next prime is 10123320247. The reversal of 10123320221 is 12202332101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10123320221 - 2²⁶ = 10056211357 is a prime.

It is a super-2 number, since 2×10123320221² (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 10123320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10123320281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310025 + ... + 341118.

It is an arithmetic number, because the mean of its divisors is an integer number (1446841968).

Almost surely, 2^10123320221 is an apocalyptic number.

It is an amenable number.

10123320221 is a deficient number, since it is larger than the sum of its proper divisors (1451415523).

10123320221 is an equidigital number, since it uses as much as digits as its factorization.

10123320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653371.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10123320221 its reverse (12202332101), we get a palindrome (22325652322).

It can be divided in two parts, 1012 and 3320221, that added together give a palindrome (3321233).

The spelling of 10123320221 in words is "ten billion, one hundred twenty-three million, three hundred twenty thousand, two hundred twenty-one".