11202021000001 has 12 divisors (see below), whose sum is σ = 12130117071420. Its totient is φ = 10340226486720.

The previous prime is 11202020999993. The next prime is 11202021000007. The reversal of 11202021000001 is 10000012020211.

It can be written as a sum of positive squares in 6 ways, for example, as 147732609600 + 11054288390401 = 384360^2 + 3324799^2 .

It is not a de Polignac number, because 11202021000001 - 2³ = 11202020999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11202021000007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21431395 + ... + 21947863.

It is an arithmetic number, because the mean of its divisors is an integer number (1010843089285).

Almost surely, 2^{11202021000001} is an apocalyptic number.

It is an amenable number.

11202021000001 is a deficient number, since it is larger than the sum of its proper divisors (928096071419).

11202021000001 is a wasteful number, since it uses less digits than its factorization.

11202021000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644836 (or 644823 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11202021000001 its reverse (10000012020211), we get a palindrome (21202033020212).

The spelling of 11202021000001 in words is "eleven trillion, two hundred two billion, twenty-one million, one", and thus it is an aban number.