11002002121001 has 4 divisors (see below), whose sum is σ = 11649178716372. Its totient is φ = 10354825525632.

The previous prime is 11002002120953. The next prime is 11002002121021. The reversal of 11002002121001 is 10012120020011.

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 6506075591401 + 4495926529600 = 2550701^2 + 2120360^2 .

It is a cyclic number.

It is not a de Polignac number, because 11002002121001 - 2¹⁴ = 11002002104617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11002002121021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323588297660 + ... + 323588297693.

It is an arithmetic number, because the mean of its divisors is an integer number (2912294679093).

Almost surely, 2^{11002002121001} is an apocalyptic number.

It is an amenable number.

11002002121001 is a deficient number, since it is larger than the sum of its proper divisors (647176595371).

11002002121001 is an equidigital number, since it uses as much as digits as its factorization.

11002002121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647176595370.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11002002121001 its reverse (10012120020011), we get a palindrome (21014122141012).

The spelling of 11002002121001 in words is "eleven trillion, two billion, two million, one hundred twenty-one thousand, one".