100222202202221 has 4 divisors (see below), whose sum is σ = 109333311493344. Its totient is φ = 91111092911100.

The previous prime is 100222202202151. The next prime is 100222202202257. The reversal of 100222202202221 is 122202202222001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100222202202221 - 2¹⁰ = 100222202201197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100222202202193 and 100222202202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222202202821) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4555554645545 + ... + 4555554645566.

It is an arithmetic number, because the mean of its divisors is an integer number (27333327873336).

Almost surely, 2^{100222202202221} is an apocalyptic number.

100222202202221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100222202202221 is a deficient number, since it is larger than the sum of its proper divisors (9111109291123).

100222202202221 is an equidigital number, since it uses as much as digits as its factorization.

100222202202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111109291122.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 100222202202221 its reverse (122202202222001), we get a palindrome (222424404424222).

The spelling of 100222202202221 in words is "one hundred trillion, two hundred twenty-two billion, two hundred two million, two hundred two thousand, two hundred twenty-one".