11001012020021 has 8 divisors (see below), whose sum is σ = 11003704371840. Its totient is φ = 10998319866912.

The previous prime is 11001012019961. The next prime is 11001012020029. The reversal of 11001012020021 is 12002021010011.

11001012020021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11001012020021 - 2¹⁸ = 11001011757877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11001012019984 and 11001012020011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001012020029) 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, 224995745 + ... + 225044633.

It is an arithmetic number, because the mean of its divisors is an integer number (1375463046480).

Almost surely, 2^{11001012020021} is an apocalyptic number.

It is an amenable number.

11001012020021 is a deficient number, since it is larger than the sum of its proper divisors (2692351819).

11001012020021 is an equidigital number, since it uses as much as digits as its factorization.

11001012020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99355.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11001012020021 its reverse (12002021010011), we get a palindrome (23003033030032).

The spelling of 11001012020021 in words is "eleven trillion, one billion, twelve million, twenty thousand, twenty-one".