2021220012211 has 2 divisors, whose sum is σ = 2021220012212. Its totient is φ = 2021220012210.

The previous prime is 2021220012199. The next prime is 2021220012257. The reversal of 2021220012211 is 1122100221202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021220012211 - 2¹³ = 2021220004019 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021220010211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010610006105 + 1010610006106.

It is an arithmetic number, because the mean of its divisors is an integer number (1010610006106).

Almost surely, 2^{2021220012211} is an apocalyptic number.

2021220012211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021220012211 is an equidigital number, since it uses as much as digits as its factorization.

2021220012211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2021220012211 its reverse (1122100221202), we get a palindrome (3143320233413).

The spelling of 2021220012211 in words is "two trillion, twenty-one billion, two hundred twenty million, twelve thousand, two hundred eleven".