1021200112211 has 2 divisors, whose sum is σ = 1021200112212. Its totient is φ = 1021200112210.

The previous prime is 1021200112201. The next prime is 1021200112237. The reversal of 1021200112211 is 1122110021201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021200112211 - 2¹⁸ = 1021199850067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021200112201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510600056105 + 510600056106.

It is an arithmetic number, because the mean of its divisors is an integer number (510600056106).

Almost surely, 2^{1021200112211} is an apocalyptic number.

1021200112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021200112211 is an equidigital number, since it uses as much as digits as its factorization.

1021200112211 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 14.

Adding to 1021200112211 its reverse (1122110021201), we get a palindrome (2143310133412).

The spelling of 1021200112211 in words is "one trillion, twenty-one billion, two hundred million, one hundred twelve thousand, two hundred eleven".