2000121022121 has 4 divisors (see below), whose sum is σ = 2000137958544. Its totient is φ = 2000104085700.

The previous prime is 2000121022111. The next prime is 2000121022147. The reversal of 2000121022121 is 1212201210002.

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 2000121022121 - 2⁶ = 2000121022057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000121022096 and 2000121022105.

It is not an unprimeable number, because it can be changed into a prime (2000121022111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8289815 + ... + 8527676.

It is an arithmetic number, because the mean of its divisors is an integer number (500034489636).

Almost surely, 2^{2000121022121} is an apocalyptic number.

It is an amenable number.

2000121022121 is a deficient number, since it is larger than the sum of its proper divisors (16936423).

2000121022121 is a wasteful number, since it uses less digits than its factorization.

2000121022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16936422.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2000121022121 its reverse (1212201210002), we get a palindrome (3212322232123).

The spelling of 2000121022121 in words is "two trillion, one hundred twenty-one million, twenty-two thousand, one hundred twenty-one".