221120200010 has 16 divisors (see below), whose sum is σ = 407724076872. Its totient is φ = 86290809600.

The previous prime is 221120200009. The next prime is 221120200033. The reversal of 221120200010 is 10002021122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 79124626681 + 141995573329 = 281291^2 + 376823^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221120199964 and 221120200000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269658371 + ... + 269659190.

Almost surely, 2^221120200010 is an apocalyptic number.

221120200010 is a deficient number, since it is larger than the sum of its proper divisors (186603876862).

221120200010 is a wasteful number, since it uses less digits than its factorization.

221120200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539317609.

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

Adding to 221120200010 its reverse (10002021122), we get a palindrome (231122221132).

The spelling of 221120200010 in words is "two hundred twenty-one billion, one hundred twenty million, two hundred thousand, ten".