10012012122 has 48 divisors (see below), whose sum is σ = 23332421952. Its totient is φ = 2855764800.

The previous prime is 10012012111. The next prime is 10012012163. The reversal of 10012012122 is 22121021001.

It is a junction number, because it is equal to n+sod(n) for n = 10012012098 and 10012012107.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148363 + ... + 205025.

It is an arithmetic number, because the mean of its divisors is an integer number (486092124).

Almost surely, 2^10012012122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10012012122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11666210976).

10012012122 is an abundant number, since it is smaller than the sum of its proper divisors (13320409830).

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

10012012122 is a wasteful number, since it uses less digits than its factorization.

10012012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57283 (or 57276 counting only the distinct ones).

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

Adding to 10012012122 its reverse (22121021001), we get a palindrome (32133033123).

The spelling of 10012012122 in words is "ten billion, twelve million, twelve thousand, one hundred twenty-two".