1011044212121 has 2 divisors, whose sum is σ = 1011044212122. Its totient is φ = 1011044212120.

The previous prime is 1011044212091. The next prime is 1011044212151. The reversal of 1011044212121 is 1212124401101.

It is a balanced prime because it is at equal distance from previous prime (1011044212091) and next prime (1011044212151).

It can be written as a sum of positive squares in only one way, i.e., 850888174096 + 160156038025 = 922436^2 + 400195^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011044212121 - 2¹⁰ = 1011044211097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1011044212093 and 1011044212102.

It is not a weakly prime, because it can be changed into another prime (1011044212151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505522106060 + 505522106061.

It is an arithmetic number, because the mean of its divisors is an integer number (505522106061).

Almost surely, 2^{1011044212121} is an apocalyptic number.

It is an amenable number.

1011044212121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011044212121 is an equidigital number, since it uses as much as digits as its factorization.

1011044212121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 1011044212121 its reverse (1212124401101), we get a palindrome (2223168613222).

The spelling of 1011044212121 in words is "one trillion, eleven billion, forty-four million, two hundred twelve thousand, one hundred twenty-one".