2000200121021 has 8 divisors (see below), whose sum is σ = 2010654687480. Its totient is φ = 1989746491392.

The previous prime is 2000200120993. The next prime is 2000200121071. The reversal of 2000200121021 is 1201210020002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 139674112900 + 1860526008121 = 373730^2 + 1364011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2000200121021 - 2¹⁰ = 2000200119997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2000200120993 and 2000200121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000200121071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4273085 + ... + 4718013.

It is an arithmetic number, because the mean of its divisors is an integer number (251331835935).

Almost surely, 2^{2000200121021} is an apocalyptic number.

It is an amenable number.

2000200121021 is a deficient number, since it is larger than the sum of its proper divisors (10454566459).

2000200121021 is a wasteful number, since it uses less digits than its factorization.

2000200121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468415.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2000200121021 its reverse (1201210020002), we get a palindrome (3201410141023).

The spelling of 2000200121021 in words is "two trillion, two hundred million, one hundred twenty-one thousand, twenty-one".