20201212104211 has 2 divisors, whose sum is σ = 20201212104212. Its totient is φ = 20201212104210.

The previous prime is 20201212104173. The next prime is 20201212104251. The reversal of 20201212104211 is 11240121210202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201212104211 - 2¹⁷ = 20201211973139 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201212104251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100606052105 + 10100606052106.

It is an arithmetic number, because the mean of its divisors is an integer number (10100606052106).

Almost surely, 2^{20201212104211} is an apocalyptic number.

20201212104211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201212104211 is an equidigital number, since it uses as much as digits as its factorization.

20201212104211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20201212104211 its reverse (11240121210202), we get a palindrome (31441333314413).

The spelling of 20201212104211 in words is "twenty trillion, two hundred one billion, two hundred twelve million, one hundred four thousand, two hundred eleven".