221100202010 has 8 divisors (see below), whose sum is σ = 397980363636. Its totient is φ = 88440080800.

The previous prime is 221100202007. The next prime is 221100202051. The reversal of 221100202010 is 10202001122.

It is a happy number.

221100202010 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 2 ways, for example, as 183664530721 + 37435671289 = 428561^2 + 193483^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 221100201982 and 221100202000.

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 3 ways as a sum of consecutive naturals, for example, 11055010091 + ... + 11055010110.

Almost surely, 2^221100202010 is an apocalyptic number.

221100202010 is a deficient number, since it is larger than the sum of its proper divisors (176880161626).

221100202010 is a wasteful number, since it uses less digits than its factorization.

221100202010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22110020208.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221100202010 its reverse (10202001122), we get a palindrome (231302203132).

The spelling of 221100202010 in words is "two hundred twenty-one billion, one hundred million, two hundred two thousand, ten".