10021120121121 has 8 divisors (see below), whose sum is σ = 13792509414144. Its totient is φ = 6465238787760.

The previous prime is 10021120121093. The next prime is 10021120121153. The reversal of 10021120121121 is 12112102112001.

It is a happy number.

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

It is not a de Polignac number, because 10021120121121 - 2³⁰ = 10020046379297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10021120121121.

It is not an unprimeable number, because it can be changed into a prime (10021124121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53876989806 + ... + 53876989991.

It is an arithmetic number, because the mean of its divisors is an integer number (1724063676768).

Almost surely, 2^{10021120121121} is an apocalyptic number.

It is an amenable number.

10021120121121 is a deficient number, since it is larger than the sum of its proper divisors (3771389293023).

10021120121121 is a wasteful number, since it uses less digits than its factorization.

10021120121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107753979831.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10021120121121 its reverse (12112102112001), we get a palindrome (22133222233122).

The spelling of 10021120121121 in words is "ten trillion, twenty-one billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".