11202002021 has 8 divisors (see below), whose sum is σ = 12836613504.
Its totient is φ = 9575971920.
The previous prime is 11202001991. The next prime is 11202002047. The reversal of 11202002021 is 12020020211.
Adding to 11202002021 its reverse (12020020211), we get a palindrome (23222022232).
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 11202002021 - 214 = 11201985637 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 11202001993 and 11202002011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11202002051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142545 + ... + 2147766.
It is an arithmetic number, because the mean of its divisors is an integer number (1604576688).
Almost surely, 211202002021 is an apocalyptic number.
It is an amenable number.
11202002021 is a deficient number, since it is larger than the sum of its proper divisors (1634611483).
11202002021 is an equidigital number, since it uses as much as digits as its factorization.
11202002021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4290691.
The product of its (nonzero) digits is 16, while the sum is 11.
The spelling of 11202002021 in words is "eleven billion, two hundred two million, two thousand, twenty-one".