20100012121001 has 8 divisors (see below), whose sum is σ = 20479481878464. Its totient is φ = 19720550669040.

The previous prime is 20100012120977. The next prime is 20100012121051. The reversal of 20100012121001 is 10012121000102.

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

It is not a de Polignac number, because 20100012121001 - 2¹⁴ = 20100012104617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20100012121051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2921996 + ... + 6981266.

It is an arithmetic number, because the mean of its divisors is an integer number (2559935234808).

Almost surely, 2^{20100012121001} is an apocalyptic number.

It is an amenable number.

20100012121001 is a deficient number, since it is larger than the sum of its proper divisors (379469757463).

20100012121001 is an equidigital number, since it uses as much as digits as its factorization.

20100012121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152751.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20100012121001 its reverse (10012121000102), we get a palindrome (30112133121103).

The spelling of 20100012121001 in words is "twenty trillion, one hundred billion, twelve million, one hundred twenty-one thousand, one".