100100022220221 has 16 divisors (see below), whose sum is σ = 134967332260800. Its totient is φ = 65983041387648.

The previous prime is 100100022220193. The next prime is 100100022220309. The reversal of 100100022220221 is 122022220001001.

It is not a de Polignac number, because 100100022220221 - 2⁹ = 100100022219709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100100022220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100100022220421) 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 15 ways as a sum of consecutive naturals, for example, 36223275 + ... + 38888631.

It is an arithmetic number, because the mean of its divisors is an integer number (8435458266300).

Almost surely, 2^{100100022220221} is an apocalyptic number.

It is an amenable number.

100100022220221 is a deficient number, since it is larger than the sum of its proper divisors (34867310040579).

100100022220221 is a wasteful number, since it uses less digits than its factorization.

100100022220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806108.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100100022220221 its reverse (122022220001001), we get a palindrome (222122242221222).

The spelling of 100100022220221 in words is "one hundred trillion, one hundred billion, twenty-two million, two hundred twenty thousand, two hundred twenty-one".