221200100002 has 16 divisors (see below), whose sum is σ = 379598095872. Its totient is φ = 94700561760.

The previous prime is 221200099987. The next prime is 221200100003. The reversal of 221200100002 is 200001002122.

It is not an unprimeable number, because it can be changed into a prime (221200100003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8276274 + ... + 8302957.

It is an arithmetic number, because the mean of its divisors is an integer number (23724880992).

Almost surely, 2^221200100002 is an apocalyptic number.

221200100002 is a deficient number, since it is larger than the sum of its proper divisors (158397995870).

221200100002 is a wasteful number, since it uses less digits than its factorization.

221200100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16580193.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 221200100002 its reverse (200001002122), we get a palindrome (421201102124).

The spelling of 221200100002 in words is "two hundred twenty-one billion, two hundred million, one hundred thousand, two".