20100110000121 has 8 divisors (see below), whose sum is σ = 29777940740960. Its totient is φ = 13400073333396.

The previous prime is 20100110000081. The next prime is 20100110000167. The reversal of 20100110000121 is 12100001100102.

It is a happy number.

It is not a de Polignac number, because 20100110000121 - 2⁹ = 20100109999609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100110000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372224259235 + ... + 372224259288.

It is an arithmetic number, because the mean of its divisors is an integer number (3722242592620).

Almost surely, 2^{20100110000121} is an apocalyptic number.

It is an amenable number.

20100110000121 is a deficient number, since it is larger than the sum of its proper divisors (9677830740839).

20100110000121 is an equidigital number, since it uses as much as digits as its factorization.

20100110000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744448518532 (or 744448518526 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20100110000121 its reverse (12100001100102), we get a palindrome (32200111100223).

The spelling of 20100110000121 in words is "twenty trillion, one hundred billion, one hundred ten million, one hundred twenty-one", and thus it is an aban number.