10002000121111 has 4 divisors (see below), whose sum is σ = 10002118275072. Its totient is φ = 10001881967152.

The previous prime is 10002000121093. The next prime is 10002000121273. The reversal of 10002000121111 is 11112100020001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10002000121111 - 2²¹ = 10001998023959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002000121411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58949911 + ... + 59119336.

It is an arithmetic number, because the mean of its divisors is an integer number (2500529568768).

Almost surely, 2^{10002000121111} is an apocalyptic number.

10002000121111 is a deficient number, since it is larger than the sum of its proper divisors (118153961).

10002000121111 is an equidigital number, since it uses as much as digits as its factorization.

10002000121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118153960.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10002000121111 its reverse (11112100020001), we get a palindrome (21114100141112).

The spelling of 10002000121111 in words is "ten trillion, two billion, one hundred twenty-one thousand, one hundred eleven".