100222220000021 has 16 divisors (see below), whose sum is σ = 116038637873280. Its totient is φ = 84785907796800.

The previous prime is 100222219999987. The next prime is 100222220000033. The reversal of 100222220000021 is 120000022222001.

It is not a de Polignac number, because 100222220000021 - 2²² = 100222215805717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100222219999960 and 100222220000005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222220030021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223367411 + ... + 223815648.

It is an arithmetic number, because the mean of its divisors is an integer number (7252414867080).

Almost surely, 2^{100222220000021} is an apocalyptic number.

It is an amenable number.

100222220000021 is a deficient number, since it is larger than the sum of its proper divisors (15816417873259).

100222220000021 is a wasteful number, since it uses less digits than its factorization.

100222220000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447183484.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 100222220000021 its reverse (120000022222001), we get a palindrome (220222242222022).

The spelling of 100222220000021 in words is "one hundred trillion, two hundred twenty-two billion, two hundred twenty million, twenty-one", and thus it is an aban number.