11002020120221 has 8 divisors (see below), whose sum is σ = 11909719670520. Its totient is φ = 10103090614272.

The previous prime is 11002020120187. The next prime is 11002020120229. The reversal of 11002020120221 is 12202102020011.

It can be written as a sum of positive squares in 4 ways, for example, as 526197721 + 11001493922500 = 22939^2 + 3316850^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11002020120221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002020120196 and 11002020120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002020120229) 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 7 ways as a sum of consecutive naturals, for example, 2192508476 + ... + 2192513493.

It is an arithmetic number, because the mean of its divisors is an integer number (1488714958815).

Almost surely, 2^{11002020120221} is an apocalyptic number.

It is an amenable number.

11002020120221 is a deficient number, since it is larger than the sum of its proper divisors (907699550299).

11002020120221 is a wasteful number, since it uses less digits than its factorization.

11002020120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385022175.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11002020120221 its reverse (12202102020011), we get a palindrome (23204122140232).

The spelling of 11002020120221 in words is "eleven trillion, two billion, twenty million, one hundred twenty thousand, two hundred twenty-one".