2001102600121 has 2 divisors, whose sum is σ = 2001102600122. Its totient is φ = 2001102600120.

The previous prime is 2001102600047. The next prime is 2001102600187. The reversal of 2001102600121 is 1210062011002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147760824896 + 853341775225 = 1071336^2 + 923765^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001102600121 - 2⁹ = 2001102599609 is a prime.

It is a super-2 number, since 2×2001102600121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001102600095 and 2001102600104.

It is not a weakly prime, because it can be changed into another prime (2001102600191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000551300060 + 1000551300061.

It is an arithmetic number, because the mean of its divisors is an integer number (1000551300061).

Almost surely, 2^{2001102600121} is an apocalyptic number.

It is an amenable number.

2001102600121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001102600121 is an equidigital number, since it uses as much as digits as its factorization.

2001102600121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2001102600121 its reverse (1210062011002), we get a palindrome (3211164611123).

The spelling of 2001102600121 in words is "two trillion, one billion, one hundred two million, six hundred thousand, one hundred twenty-one".