11000210010021 has 6 divisors (see below), whose sum is σ = 15889192236710. Its totient is φ = 7333473340008.

The previous prime is 11000210010019. The next prime is 11000210010047. The reversal of 11000210010021 is 12001001200011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9641211300900 + 1358998709121 = 3105030^2 + 1165761^2 .

It is not a de Polignac number, because 11000210010021 - 2¹ = 11000210010019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1222245556669 = 11000210010021 / (1 + 1 + 0 + 0 + 0 + 2 + 1 + 0 + 0 + 1 + 0 + 0 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11000210009985 and 11000210010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000210012021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611122778326 + ... + 611122778343.

Almost surely, 2^{11000210010021} is an apocalyptic number.

It is an amenable number.

11000210010021 is a deficient number, since it is larger than the sum of its proper divisors (4888982226689).

11000210010021 is a wasteful number, since it uses less digits than its factorization.

11000210010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222245556675 (or 1222245556672 counting only the distinct ones).

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

Adding to 11000210010021 its reverse (12001001200011), we get a palindrome (23001211210032).

The spelling of 11000210010021 in words is "eleven trillion, two hundred ten million, ten thousand, twenty-one".