100522216181 has 4 divisors (see below), whose sum is σ = 100524273612. Its totient is φ = 100520158752.

The previous prime is 100522216159. The next prime is 100522216187. The reversal of 100522216181 is 181612225001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40817737156 + 59704479025 = 202034^2 + 244345^2 .

It is a cyclic number.

It is not a de Polignac number, because 100522216181 - 2¹⁴ = 100522199797 is a prime.

It is a super-2 number, since 2×100522216181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100522216187) 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, 953600 + ... + 1053753.

It is an arithmetic number, because the mean of its divisors is an integer number (25131068403).

Almost surely, 2^100522216181 is an apocalyptic number.

It is an amenable number.

100522216181 is a deficient number, since it is larger than the sum of its proper divisors (2057431).

100522216181 is an equidigital number, since it uses as much as digits as its factorization.

100522216181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057430.

The product of its (nonzero) digits is 1920, while the sum is 29.

The spelling of 100522216181 in words is "one hundred billion, five hundred twenty-two million, two hundred sixteen thousand, one hundred eighty-one".