221211002002 has 8 divisors (see below), whose sum is σ = 331957648512. Its totient is φ = 110558452500.

The previous prime is 221211001997. The next prime is 221211002021. The reversal of 221211002002 is 200200112122.

It is a happy number.

221211002002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23518374 + ... + 23527777.

It is an arithmetic number, because the mean of its divisors is an integer number (41494706064).

Almost surely, 2^221211002002 is an apocalyptic number.

221211002002 is a deficient number, since it is larger than the sum of its proper divisors (110746646510).

221211002002 is a wasteful number, since it uses less digits than its factorization.

221211002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47048504.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221211002002 its reverse (200200112122), we get a palindrome (421411114124).

The spelling of 221211002002 in words is "two hundred twenty-one billion, two hundred eleven million, two thousand, two".