10102000000121 has 4 divisors (see below), whose sum is σ = 10103981178000. Its totient is φ = 10100018822244.

The previous prime is 10102000000063. The next prime is 10102000000133. The reversal of 10102000000121 is 12100000020101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10102000000121 - 2²⁶ = 10101932891257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102000000099 and 10102000000108.

It is not an unprimeable number, because it can be changed into a prime (10102000000151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 990581291 + ... + 990591488.

It is an arithmetic number, because the mean of its divisors is an integer number (2525995294500).

Almost surely, 2^{10102000000121} is an apocalyptic number.

It is an amenable number.

10102000000121 is a deficient number, since it is larger than the sum of its proper divisors (1981177879).

10102000000121 is an equidigital number, since it uses as much as digits as its factorization.

10102000000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981177878.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 10102000000121 its reverse (12100000020101), we get a palindrome (22202000020222).

The spelling of 10102000000121 in words is "ten trillion, one hundred two billion, one hundred twenty-one", and thus it is an aban number.