2111021121241 has 2 divisors, whose sum is σ = 2111021121242. Its totient is φ = 2111021121240.

The previous prime is 2111021121217. The next prime is 2111021121269. The reversal of 2111021121241 is 1421211201112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2065831290000 + 45189831241 = 1437300^2 + 212579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111021121241 - 2⁹ = 2111021120729 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111021121281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510560620 + 1055510560621.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510560621).

Almost surely, 2^{2111021121241} is an apocalyptic number.

It is an amenable number.

2111021121241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111021121241 is an equidigital number, since it uses as much as digits as its factorization.

2111021121241 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 19.

Adding to 2111021121241 its reverse (1421211201112), we get a palindrome (3532232322353).

The spelling of 2111021121241 in words is "two trillion, one hundred eleven billion, twenty-one million, one hundred twenty-one thousand, two hundred forty-one".