100522120505 has 4 divisors (see below), whose sum is σ = 120626544612. Its totient is φ = 80417696400.

The previous prime is 100522120483. The next prime is 100522120507. The reversal of 100522120505 is 505021225001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505021225001 = 16729 ⋅30188369.

It can be written as a sum of positive squares in 2 ways, for example, as 46720390201 + 53801730304 = 216149^2 + 231952^2 .

It is not a de Polignac number, because 100522120505 - 2³⁰ = 99448378681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100522120507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10052212046 + ... + 10052212055.

It is an arithmetic number, because the mean of its divisors is an integer number (30156636153).

Almost surely, 2^100522120505 is an apocalyptic number.

It is an amenable number.

100522120505 is a deficient number, since it is larger than the sum of its proper divisors (20104424107).

100522120505 is an equidigital number, since it uses as much as digits as its factorization.

100522120505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20104424106.

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 100522120505 its reverse (505021225001), we get a palindrome (605543345506).

The spelling of 100522120505 in words is "one hundred billion, five hundred twenty-two million, one hundred twenty thousand, five hundred five".