10121201121 has 4 divisors (see below), whose sum is σ = 13494934832. Its totient is φ = 6747467412.

The previous prime is 10121201099. The next prime is 10121201131. The reversal of 10121201121 is 12110212101.

10121201121 is digitally balanced in base 3, 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 not a de Polignac number, because 10121201121 - 2⁷ = 10121200993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121201097 and 10121201106.

It is not an unprimeable number, because it can be changed into a prime (10121201131) 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, 1686866851 + ... + 1686866856.

It is an arithmetic number, because the mean of its divisors is an integer number (3373733708).

Almost surely, 2^10121201121 is an apocalyptic number.

It is an amenable number.

10121201121 is a deficient number, since it is larger than the sum of its proper divisors (3373733711).

10121201121 is an equidigital number, since it uses as much as digits as its factorization.

10121201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373733710.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10121201121 its reverse (12110212101), we get a palindrome (22231413222).

The spelling of 10121201121 in words is "ten billion, one hundred twenty-one million, two hundred one thousand, one hundred twenty-one".