221010212002 has 24 divisors (see below), whose sum is σ = 352977040836. Its totient is φ = 103764492288.

The previous prime is 221010211991. The next prime is 221010212041. The reversal of 221010212002 is 200212010122.

It is a happy number.

221010212002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 96994250721 + 124015961281 = 311439^2 + 352159^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 191263 + ... + 691810.

Almost surely, 2^221010212002 is an apocalyptic number.

221010212002 is a deficient number, since it is larger than the sum of its proper divisors (131966828834).

221010212002 is a wasteful number, since it uses less digits than its factorization.

221010212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883542 (or 883525 counting only the distinct ones).

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

Adding to 221010212002 its reverse (200212010122), we get a palindrome (421222222124).

The spelling of 221010212002 in words is "two hundred twenty-one billion, ten million, two hundred twelve thousand, two".