200100011212021 has 2 divisors, whose sum is σ = 200100011212022. Its totient is φ = 200100011212020.

The previous prime is 200100011212019. The next prime is 200100011212051. The reversal of 200100011212021 is 120212110001002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192967826733796 + 7132184478225 = 13891286^2 + 2670615^2 .

It is a cyclic number.

It is not a de Polignac number, because 200100011212021 - 2¹ = 200100011212019 is a prime.

Together with 200100011212019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 200100011211992 and 200100011212010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200100011212051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100050005606010 + 100050005606011.

It is an arithmetic number, because the mean of its divisors is an integer number (100050005606011).

Almost surely, 2^{200100011212021} is an apocalyptic number.

It is an amenable number.

200100011212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200100011212021 is an equidigital number, since it uses as much as digits as its factorization.

200100011212021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 200100011212021 its reverse (120212110001002), we get a palindrome (320312121213023).

The spelling of 200100011212021 in words is "two hundred trillion, one hundred billion, eleven million, two hundred twelve thousand, twenty-one".