10000111202121 has 16 divisors (see below), whose sum is σ = 13819477601600. Its totient is φ = 6427048897728.

The previous prime is 10000111202113. The next prime is 10000111202149. The reversal of 10000111202121 is 12120211100001.

It is not a de Polignac number, because 10000111202121 - 2³ = 10000111202113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000111202097 and 10000111202106.

It is not an unprimeable number, because it can be changed into a prime (10000111402121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413249791 + ... + 413273988.

It is an arithmetic number, because the mean of its divisors is an integer number (863717350100).

Almost surely, 2^{10000111202121} is an apocalyptic number.

It is an amenable number.

10000111202121 is a deficient number, since it is larger than the sum of its proper divisors (3819366399479).

10000111202121 is a wasteful number, since it uses less digits than its factorization.

10000111202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826523928.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10000111202121 its reverse (12120211100001), we get a palindrome (22120322302122).

The spelling of 10000111202121 in words is "ten trillion, one hundred eleven million, two hundred two thousand, one hundred twenty-one".