1121212121041 has 2 divisors, whose sum is σ = 1121212121042. Its totient is φ = 1121212121040.

The previous prime is 1121212121033. The next prime is 1121212121143. The reversal of 1121212121041 is 1401212121211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121207794641 + 4326400 = 1058871^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121212121041 - 2³ = 1121212121033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121212121641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560606060520 + 560606060521.

It is an arithmetic number, because the mean of its divisors is an integer number (560606060521).

Almost surely, 2^{1121212121041} is an apocalyptic number.

It is an amenable number.

1121212121041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121212121041 is an equidigital number, since it uses as much as digits as its factorization.

1121212121041 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 1121212121041 its reverse (1401212121211), we get a palindrome (2522424242252).

The spelling of 1121212121041 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, forty-one".