10121021100001 has 32 divisors (see below), whose sum is σ = 12374814984192. Its totient is φ = 8079999417600.

The previous prime is 10121021099993. The next prime is 10121021100077. The reversal of 10121021100001 is 10000112012101.

It is a cyclic number.

It is not a de Polignac number, because 10121021100001 - 2³ = 10121021099993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121021103001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11638476 + ... + 12477826.

It is an arithmetic number, because the mean of its divisors is an integer number (386712968256).

Almost surely, 2^{10121021100001} is an apocalyptic number.

It is an amenable number.

10121021100001 is a deficient number, since it is larger than the sum of its proper divisors (2253793884191).

10121021100001 is a wasteful number, since it uses less digits than its factorization.

10121021100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840429.

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

Adding to 10121021100001 its reverse (10000112012101), we get a palindrome (20121133112102).

The spelling of 10121021100001 in words is "ten trillion, one hundred twenty-one billion, twenty-one million, one hundred thousand, one".