21100200222 has 8 divisors (see below), whose sum is σ = 42200400456. Its totient is φ = 7033400072.

The previous prime is 21100200217. The next prime is 21100200223. The reversal of 21100200222 is 22200200112.

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

21100200222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 21100200198 and 21100200207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100200223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758350013 + ... + 1758350024.

It is an arithmetic number, because the mean of its divisors is an integer number (5275050057).

Almost surely, 2^21100200222 is an apocalyptic number.

21100200222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21100200222 is a wasteful number, since it uses less digits than its factorization.

21100200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516700042.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 21100200222 its reverse (22200200112), we get a palindrome (43300400334).

The spelling of 21100200222 in words is "twenty-one billion, one hundred million, two hundred thousand, two hundred twenty-two".