11010201000021 has 256 divisors, whose sum is σ = 18556859904000. Its totient is φ = 6421138375680.

The previous prime is 11010201000011. The next prime is 11010201000047. The reversal of 11010201000021 is 12000010201011.

It is a happy number.

It is not a de Polignac number, because 11010201000021 - 2¹⁴ = 11010200983637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11010200999967 and 11010201000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010201000011) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 11043330495 + ... + 11043331491.

It is an arithmetic number, because the mean of its divisors is an integer number (72487734000).

Almost surely, 2^{11010201000021} is an apocalyptic number.

It is an amenable number.

11010201000021 is a deficient number, since it is larger than the sum of its proper divisors (7546658903979).

11010201000021 is a wasteful number, since it uses less digits than its factorization.

11010201000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11010201000021 its reverse (12000010201011), we get a palindrome (23010211201032).

The spelling of 11010201000021 in words is "eleven trillion, ten billion, two hundred one million, twenty-one", and thus it is an aban number.