11020001100021 has 48 divisors (see below), whose sum is σ = 16338603954816. Its totient is φ = 7154698531968.

The previous prime is 11020001100001. The next prime is 11020001100041. The reversal of 11020001100021 is 12000110002011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11020001100001) and next prime (11020001100041).

It is not a de Polignac number, because 11020001100021 - 2⁹ = 11020001099509 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11020001099976 and 11020001100012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020001100001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34591366 + ... + 34908488.

It is an arithmetic number, because the mean of its divisors is an integer number (340387582392).

Almost surely, 2^{11020001100021} is an apocalyptic number.

It is an amenable number.

11020001100021 is a deficient number, since it is larger than the sum of its proper divisors (5318602854795).

11020001100021 is a wasteful number, since it uses less digits than its factorization.

11020001100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317722 (or 317719 counting only the distinct ones).

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

Adding to 11020001100021 its reverse (12000110002011), we get a palindrome (23020111102032).

The spelling of 11020001100021 in words is "eleven trillion, twenty billion, one million, one hundred thousand, twenty-one".