2021200220111 has 2 divisors, whose sum is σ = 2021200220112. Its totient is φ = 2021200220110.

The previous prime is 2021200220099. The next prime is 2021200220119. The reversal of 2021200220111 is 1110220021202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021200220111 - 2²⁶ = 2021133111247 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021200220119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010600110055 + 1010600110056.

It is an arithmetic number, because the mean of its divisors is an integer number (1010600110056).

Almost surely, 2^{2021200220111} is an apocalyptic number.

2021200220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021200220111 is an equidigital number, since it uses as much as digits as its factorization.

2021200220111 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 14.

Adding to 2021200220111 its reverse (1110220021202), we get a palindrome (3131420241313).

The spelling of 2021200220111 in words is "two trillion, twenty-one billion, two hundred million, two hundred twenty thousand, one hundred eleven".