20002011002121 has 32 divisors (see below), whose sum is σ = 27536956489728. Its totient is φ = 12906054725760.

The previous prime is 20002011002119. The next prime is 20002011002179. The reversal of 20002011002121 is 12120011020002.

It is not a de Polignac number, because 20002011002121 - 2¹ = 20002011002119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20002011002097 and 20002011002106.

It is not an unprimeable number, because it can be changed into a prime (20002011002521) 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 31 ways as a sum of consecutive naturals, for example, 258441996 + ... + 258519378.

It is an arithmetic number, because the mean of its divisors is an integer number (860529890304).

Almost surely, 2^{20002011002121} is an apocalyptic number.

It is an amenable number.

20002011002121 is a deficient number, since it is larger than the sum of its proper divisors (7534945487607).

20002011002121 is a wasteful number, since it uses less digits than its factorization.

20002011002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94101.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20002011002121 its reverse (12120011020002), we get a palindrome (32122022022123).

The spelling of 20002011002121 in words is "twenty trillion, two billion, eleven million, two thousand, one hundred twenty-one".