100111011022221 has 8 divisors (see below), whose sum is σ = 133504091509920. Its totient is φ = 66729302274672.

The previous prime is 100111011022193. The next prime is 100111011022229. The reversal of 100111011022221 is 122220110111001.

It is a happy number.

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

It is not a de Polignac number, because 100111011022221 - 2⁷ = 100111011022093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100111011022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111011022229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2842914495 + ... + 2842949708.

It is an arithmetic number, because the mean of its divisors is an integer number (16688011438740).

Almost surely, 2^{100111011022221} is an apocalyptic number.

It is an amenable number.

100111011022221 is a deficient number, since it is larger than the sum of its proper divisors (33393080487699).

100111011022221 is an equidigital number, since it uses as much as digits as its factorization.

100111011022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685870075.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 100111011022221 its reverse (122220110111001), we get a palindrome (222331121133222).

The spelling of 100111011022221 in words is "one hundred trillion, one hundred eleven billion, eleven million, twenty-two thousand, two hundred twenty-one".