10001122122 has 16 divisors (see below), whose sum is σ = 20011350240. Its totient is φ = 3332189712.

The previous prime is 10001122099. The next prime is 10001122123. The reversal of 10001122122 is 22122110001.

It is a junction number, because it is equal to n+sod(n) for n = 10001122098 and 10001122107.

It is not an unprimeable number, because it can be changed into a prime (10001122123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365097 + ... + 391532.

It is an arithmetic number, because the mean of its divisors is an integer number (1250709390).

Almost surely, 2^10001122122 is an apocalyptic number.

10001122122 is an abundant number, since it is smaller than the sum of its proper divisors (10010228118).

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

10001122122 is a wasteful number, since it uses less digits than its factorization.

10001122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758837.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10001122122 its reverse (22122110001), we get a palindrome (32123232123).

The spelling of 10001122122 in words is "ten billion, one million, one hundred twenty-two thousand, one hundred twenty-two".