11012021021021 has 8 divisors (see below), whose sum is σ = 11659816589760. Its totient is φ = 10364228744128.

The previous prime is 11012021020969. The next prime is 11012021021129. The reversal of 11012021021021 is 12012012021011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11012021021021 - 2¹⁰ = 11012021019997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012021020987 and 11012021021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012024021021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10573730 + ... + 11568396.

It is an arithmetic number, because the mean of its divisors is an integer number (1457477073720).

Almost surely, 2^{11012021021021} is an apocalyptic number.

It is an amenable number.

11012021021021 is a deficient number, since it is larger than the sum of its proper divisors (647795568739).

11012021021021 is an equidigital number, since it uses as much as digits as its factorization.

11012021021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645923.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11012021021021 its reverse (12012012021011), we get a palindrome (23024033042032).

The spelling of 11012021021021 in words is "eleven trillion, twelve billion, twenty-one million, twenty-one thousand, twenty-one".