10121001121 has 16 divisors (see below), whose sum is σ = 13167019008. Its totient is φ = 7543602000.

The previous prime is 10121001113. The next prime is 10121001139. The reversal of 10121001121 is 12110012101.

It is not a de Polignac number, because 10121001121 - 2³ = 10121001113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10121001098 and 10121001107.

It is not an unprimeable number, because it can be changed into a prime (10121001101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2855655 + ... + 2859196.

It is an arithmetic number, because the mean of its divisors is an integer number (822938688).

Almost surely, 2^10121001121 is an apocalyptic number.

10121001121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10121001121 is a deficient number, since it is larger than the sum of its proper divisors (3046017887).

10121001121 is a wasteful number, since it uses less digits than its factorization.

10121001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714892.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10121001121 its reverse (12110012101), we get a palindrome (22231013222).

The spelling of 10121001121 in words is "ten billion, one hundred twenty-one million, one thousand, one hundred twenty-one".