20102120100211 has 2 divisors, whose sum is σ = 20102120100212. Its totient is φ = 20102120100210.

The previous prime is 20102120100199. The next prime is 20102120100247. The reversal of 20102120100211 is 11200102120102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20102120100211 - 2¹⁵ = 20102120067443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20102120100191 and 20102120100200.

It is not a weakly prime, because it can be changed into another prime (20102120100011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051060050105 + 10051060050106.

It is an arithmetic number, because the mean of its divisors is an integer number (10051060050106).

Almost surely, 2^{20102120100211} is an apocalyptic number.

20102120100211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102120100211 is an equidigital number, since it uses as much as digits as its factorization.

20102120100211 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20102120100211 its reverse (11200102120102), we get a palindrome (31302222220313).

The spelling of 20102120100211 in words is "twenty trillion, one hundred two billion, one hundred twenty million, one hundred thousand, two hundred eleven".