10121226121 has 4 divisors (see below), whose sum is σ = 10122739200. Its totient is φ = 10119713044.

The previous prime is 10121226119. The next prime is 10121226127. The reversal of 10121226121 is 12162212101.

10121226121 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 10121226121 - 2¹ = 10121226119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121226127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746461 + ... + 759898.

It is an arithmetic number, because the mean of its divisors is an integer number (2530684800).

Almost surely, 2^10121226121 is an apocalyptic number.

It is an amenable number.

10121226121 is a deficient number, since it is larger than the sum of its proper divisors (1513079).

10121226121 is an equidigital number, since it uses as much as digits as its factorization.

10121226121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513078.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 10121226121 its reverse (12162212101), we get a palindrome (22283438222).

The spelling of 10121226121 in words is "ten billion, one hundred twenty-one million, two hundred twenty-six thousand, one hundred twenty-one".