10102000100121 has 48 divisors (see below), whose sum is σ = 15520569712128. Its totient is φ = 6322902768000.

The previous prime is 10102000100117. The next prime is 10102000100147. The reversal of 10102000100121 is 12100100020101.

It is a happy number.

It is not a de Polignac number, because 10102000100121 - 2² = 10102000100117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10102000100191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3434230 + ... + 5656671.

It is an arithmetic number, because the mean of its divisors is an integer number (323345202336).

Almost surely, 2^{10102000100121} is an apocalyptic number.

It is an amenable number.

10102000100121 is a deficient number, since it is larger than the sum of its proper divisors (5418569612007).

10102000100121 is a wasteful number, since it uses less digits than its factorization.

10102000100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9091062 (or 9091059 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10102000100121 its reverse (12100100020101), we get a palindrome (22202100120222).

The spelling of 10102000100121 in words is "ten trillion, one hundred two billion, one hundred thousand, one hundred twenty-one".