11021110010021 has 4 divisors (see below), whose sum is σ = 11048870992812. Its totient is φ = 10993349027232.

The previous prime is 11021110009969. The next prime is 11021110010087. The reversal of 11021110010021 is 12001001112011.

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 5973062680225 + 5048047329796 = 2443985^2 + 2246786^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021110010021 - 2³⁴ = 11003930140837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11021110009984 and 11021110010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021110010221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13880490800 + ... + 13880491593.

It is an arithmetic number, because the mean of its divisors is an integer number (2762217748203).

Almost surely, 2^{11021110010021} is an apocalyptic number.

It is an amenable number.

11021110010021 is a deficient number, since it is larger than the sum of its proper divisors (27760982791).

11021110010021 is an equidigital number, since it uses as much as digits as its factorization.

11021110010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27760982790.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11021110010021 its reverse (12001001112011), we get a palindrome (23022111122032).

The spelling of 11021110010021 in words is "eleven trillion, twenty-one billion, one hundred ten million, ten thousand, twenty-one".