10122020221121 has 4 divisors (see below), whose sum is σ = 10201721167872. Its totient is φ = 10042319274372.

The previous prime is 10122020221099. The next prime is 10122020221129. The reversal of 10122020221121 is 12112202022101.

10122020221121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10122020221121 - 2²² = 10122016026817 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 10122020221121.

It is not an unprimeable number, because it can be changed into a prime (10122020221129) 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, 39850473185 + ... + 39850473438.

It is an arithmetic number, because the mean of its divisors is an integer number (2550430291968).

Almost surely, 2^{10122020221121} is an apocalyptic number.

It is an amenable number.

10122020221121 is a deficient number, since it is larger than the sum of its proper divisors (79700946751).

10122020221121 is an equidigital number, since it uses as much as digits as its factorization.

10122020221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79700946750.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10122020221121 its reverse (12112202022101), we get a palindrome (22234222243222).

The spelling of 10122020221121 in words is "ten trillion, one hundred twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred twenty-one".