10121000001 has 32 divisors (see below), whose sum is σ = 15928320000. Its totient is φ = 5593933440.

The previous prime is 10120999991. The next prime is 10121000023. The reversal of 10121000001 is 10000012101.

It is not a de Polignac number, because 10121000001 - 2⁵ = 10120999969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10121001001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1982350 + ... + 1987448.

It is an arithmetic number, because the mean of its divisors is an integer number (497760000).

Almost surely, 2^10121000001 is an apocalyptic number.

It is an amenable number.

10121000001 is a deficient number, since it is larger than the sum of its proper divisors (5807319999).

10121000001 is a wasteful number, since it uses less digits than its factorization.

10121000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 10121000001 its reverse (10000012101), we get a palindrome (20121012102).

The spelling of 10121000001 in words is "ten billion, one hundred twenty-one million, one", and thus it is an aban number.