11000000202021 has 24 divisors (see below), whose sum is σ = 16951953642624. Its totient is φ = 6849274174080.

The previous prime is 11000000201917. The next prime is 11000000202049. The reversal of 11000000202021 is 12020200000011.

It is not a de Polignac number, because 11000000202021 - 2¹³ = 11000000193829 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 = 11000000201994 and 11000000202012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000000202071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 274389981 + ... + 274430066.

It is an arithmetic number, because the mean of its divisors is an integer number (706331401776).

Almost surely, 2^{11000000202021} is an apocalyptic number.

It is an amenable number.

11000000202021 is a deficient number, since it is larger than the sum of its proper divisors (5951953440603).

11000000202021 is a wasteful number, since it uses less digits than its factorization.

11000000202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548820201 (or 548820198 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11000000202021 its reverse (12020200000011), we get a palindrome (23020200202032).

The spelling of 11000000202021 in words is "eleven trillion, two hundred two thousand, twenty-one".