100120522 has 24 divisors (see below), whose sum is σ = 155648196. Its totient is φ = 48291264.

The previous prime is 100120513. The next prime is 100120529. The reversal of 100120522 is 225021001.

It can be written as a sum of positive squares in 2 ways, for example, as 88003161 + 12117361 = 9381^2 + 3481^2 .

It is not an unprimeable number, because it can be changed into a prime (100120529) 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 11 ways as a sum of consecutive naturals, for example, 508128 + ... + 508324.

Almost surely, 2^100120522 is an apocalyptic number.

100120522 is a deficient number, since it is larger than the sum of its proper divisors (55527674).

100120522 is an equidigital number, since it uses as much as digits as its factorization.

100120522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 100120522 is about 10006.0242853993. The cubic root of 100120522 is about 464.3452796883.

Adding to 100120522 its reverse (225021001), we get a palindrome (325141523).

The spelling of 100120522 in words is "one hundred million, one hundred twenty thousand, five hundred twenty-two".