11010200100021 has 12 divisors (see below), whose sum is σ = 16839129564972. Its totient is φ = 6908360846976.

The previous prime is 11010200099989. The next prime is 11010200100043. The reversal of 11010200100021 is 12000100201011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9518699687121 + 1491500412900 = 3085239^2 + 1221270^2 .

It is not a de Polignac number, because 11010200100021 - 2⁵ = 11010200099989 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 = 11010200099976 and 11010200100012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010200100061) 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, 35981045926 + ... + 35981046231.

It is an arithmetic number, because the mean of its divisors is an integer number (1403260797081).

Almost surely, 2^{11010200100021} is an apocalyptic number.

It is an amenable number.

11010200100021 is a deficient number, since it is larger than the sum of its proper divisors (5828929464951).

11010200100021 is a wasteful number, since it uses less digits than its factorization.

11010200100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71962092180 (or 71962092177 counting only the distinct ones).

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

Adding to 11010200100021 its reverse (12000100201011), we get a palindrome (23010300301032).

The spelling of 11010200100021 in words is "eleven trillion, ten billion, two hundred million, one hundred thousand, twenty-one".