11021010010121 has 4 divisors (see below), whose sum is σ = 11023676602692. Its totient is φ = 11018343417552.

The previous prime is 11021010010103. The next prime is 11021010010163. The reversal of 11021010010121 is 12101001012011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10245351098896 + 775658911225 = 3200836^2 + 880715^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021010010121 - 2¹⁴ = 11021009993737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021010010421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333290086 + ... + 1333298351.

It is an arithmetic number, because the mean of its divisors is an integer number (2755919150673).

Almost surely, 2^{11021010010121} is an apocalyptic number.

It is an amenable number.

11021010010121 is a deficient number, since it is larger than the sum of its proper divisors (2666592571).

11021010010121 is an equidigital number, since it uses as much as digits as its factorization.

11021010010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666592570.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11021010010121 its reverse (12101001012011), we get a palindrome (23122011022132).

The spelling of 11021010010121 in words is "eleven trillion, twenty-one billion, ten million, ten thousand, one hundred twenty-one".