10120310123221 has 4 divisors (see below), whose sum is σ = 10182397915552. Its totient is φ = 10058222330892.

The previous prime is 10120310123159. The next prime is 10120310123257. The reversal of 10120310123221 is 12232101302101.

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 10120310123221 - 2²¹ = 10120308026069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120310121221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31043895921 + ... + 31043896246.

It is an arithmetic number, because the mean of its divisors is an integer number (2545599478888).

Almost surely, 2^{10120310123221} is an apocalyptic number.

It is an amenable number.

10120310123221 is a deficient number, since it is larger than the sum of its proper divisors (62087792331).

10120310123221 is an equidigital number, since it uses as much as digits as its factorization.

10120310123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62087792330.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 10120310123221 its reverse (12232101302101), we get a palindrome (22352411425322).

The spelling of 10120310123221 in words is "ten trillion, one hundred twenty billion, three hundred ten million, one hundred twenty-three thousand, two hundred twenty-one".