20000211022021 has 2 divisors, whose sum is σ = 20000211022022. Its totient is φ = 20000211022020.

The previous prime is 20000211022013. The next prime is 20000211022027. The reversal of 20000211022021 is 12022011200002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18128102959521 + 1872108062500 = 4257711^2 + 1368250^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000211022021 - 2³ = 20000211022013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20000211021992 and 20000211022010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000211022027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000105511010 + 10000105511011.

It is an arithmetic number, because the mean of its divisors is an integer number (10000105511011).

Almost surely, 2^{20000211022021} is an apocalyptic number.

It is an amenable number.

20000211022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000211022021 is an equidigital number, since it uses as much as digits as its factorization.

20000211022021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20000211022021 its reverse (12022011200002), we get a palindrome (32022222222023).

The spelling of 20000211022021 in words is "twenty trillion, two hundred eleven million, twenty-two thousand, twenty-one".