2000121201111 has 16 divisors (see below), whose sum is σ = 2910072597120. Its totient is φ = 1211859085920.

The previous prime is 2000121200989. The next prime is 2000121201131. The reversal of 2000121201111 is 1111021210002.

It is not a de Polignac number, because 2000121201111 - 2⁷ = 2000121200983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000121201131) 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 15 ways as a sum of consecutive naturals, for example, 8268501 + ... + 8506958.

It is an arithmetic number, because the mean of its divisors is an integer number (181879537320).

Almost surely, 2^{2000121201111} is an apocalyptic number.

2000121201111 is a deficient number, since it is larger than the sum of its proper divisors (909951396009).

2000121201111 is a wasteful number, since it uses less digits than its factorization.

2000121201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16779086.

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

Adding to 2000121201111 its reverse (1111021210002), we get a palindrome (3111142411113).

The spelling of 2000121201111 in words is "two trillion, one hundred twenty-one million, two hundred one thousand, one hundred eleven".