100000122 has 16 divisors (see below), whose sum is σ = 205406112. Its totient is φ = 32432400.

The previous prime is 100000081. The next prime is 100000123. The reversal of 100000122 is 221000001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 100000122.

It is not an unprimeable number, because it can be changed into a prime (100000123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225004 + ... + 225447.

It is an arithmetic number, because the mean of its divisors is an integer number (12837882).

Almost surely, 2^100000122 is an apocalyptic number.

100000122 is an abundant number, since it is smaller than the sum of its proper divisors (105405990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100000122 is a wasteful number, since it uses less digits than its factorization.

100000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450493.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 100000122 is about 10000.0060999981. The cubic root of 100000122 is about 464.1590721191.

Adding to 100000122 its reverse (221000001), we get a palindrome (321000123).

It can be divided in two parts, 1000001 and 22, that multiplied together give a palindrome (22000022).

The spelling of 100000122 in words is "one hundred million, one hundred twenty-two", and thus it is an aban number.