20002010212121 has 16 divisors (see below), whose sum is σ = 22932475261440. Its totient is φ = 17089808276160.

The previous prime is 20002010212111. The next prime is 20002010212147. The reversal of 20002010212121 is 12121201020002.

It is a cyclic number.

It is not a de Polignac number, because 20002010212121 - 2¹⁰ = 20002010211097 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 = 20002010212096 and 20002010212105.

It is not an unprimeable number, because it can be changed into a prime (20002010212111) 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, 59347760 + ... + 59683838.

It is an arithmetic number, because the mean of its divisors is an integer number (1433279703840).

Almost surely, 2^{20002010212121} is an apocalyptic number.

It is an amenable number.

20002010212121 is a deficient number, since it is larger than the sum of its proper divisors (2930465049319).

20002010212121 is a wasteful number, since it uses less digits than its factorization.

20002010212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363224.

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

Adding to 20002010212121 its reverse (12121201020002), we get a palindrome (32123211232123).

The spelling of 20002010212121 in words is "twenty trillion, two billion, ten million, two hundred twelve thousand, one hundred twenty-one".