11101002002021 has 4 divisors (see below), whose sum is σ = 11102620938732. Its totient is φ = 11099383065312.

The previous prime is 11101002002003. The next prime is 11101002002023. The reversal of 11101002002021 is 12020020010111.

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 60068617921 + 11040933384100 = 245089^2 + 3322790^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101002002021 - 2¹⁰ = 11101002000997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101002001993 and 11101002002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101002002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809458070 + ... + 809471783.

It is an arithmetic number, because the mean of its divisors is an integer number (2775655234683).

Almost surely, 2^{11101002002021} is an apocalyptic number.

It is an amenable number.

11101002002021 is a deficient number, since it is larger than the sum of its proper divisors (1618936711).

11101002002021 is an equidigital number, since it uses as much as digits as its factorization.

11101002002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618936710.

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

Adding to 11101002002021 its reverse (12020020010111), we get a palindrome (23121022012132).

The spelling of 11101002002021 in words is "eleven trillion, one hundred one billion, two million, two thousand, twenty-one".