212021010220211 has 2 divisors, whose sum is σ = 212021010220212. Its totient is φ = 212021010220210.

The previous prime is 212021010220193. The next prime is 212021010220241. The reversal of 212021010220211 is 112022010120212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021010220211 - 2⁴² = 207622963709107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212021010220211.

It is not a weakly prime, because it can be changed into another prime (212021010220241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010505110105 + 106010505110106.

It is an arithmetic number, because the mean of its divisors is an integer number (106010505110106).

Almost surely, 2^{212021010220211} is an apocalyptic number.

212021010220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021010220211 is an equidigital number, since it uses as much as digits as its factorization.

212021010220211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212021010220211 its reverse (112022010120212), we get a palindrome (324043020340423).

Subtracting from 212021010220211 its reverse (112022010120212), we obtain a palindrome (99999000099999).

The spelling of 212021010220211 in words is "two hundred twelve trillion, twenty-one billion, ten million, two hundred twenty thousand, two hundred eleven".