100001012122 has 16 divisors (see below), whose sum is σ = 163881191232. Its totient is φ = 45387457920.

The previous prime is 100001012113. The next prime is 100001012129. The reversal of 100001012122 is 221210100001.

It is a junction number, because it is equal to n+sod(n) for n = 100001012099 and 100001012108.

It is not an unprimeable number, because it can be changed into a prime (100001012129) 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, 3362238 + ... + 3391849.

It is an arithmetic number, because the mean of its divisors is an integer number (10242574452).

Almost surely, 2^100001012122 is an apocalyptic number.

100001012122 is a deficient number, since it is larger than the sum of its proper divisors (63880179110).

100001012122 is a wasteful number, since it uses less digits than its factorization.

100001012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6754773.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100001012122 its reverse (221210100001), we get a palindrome (321211112123).

The spelling of 100001012122 in words is "one hundred billion, one million, twelve thousand, one hundred twenty-two".