2103021112122 has 96 divisors (see below), whose sum is σ = 5290955130240. Its totient is φ = 591295541760.

The previous prime is 2103021112099. The next prime is 2103021112187. The reversal of 2103021112122 is 2212111203012.

2103021112122 is a `hidden beast` number, since 210 + 30 + 211 + 1 + 212 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2103021112095 and 2103021112104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1921758 + ... + 2810550.

It is an arithmetic number, because the mean of its divisors is an integer number (55114115940).

Almost surely, 2^{2103021112122} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103021112122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2645477565120).

2103021112122 is an abundant number, since it is smaller than the sum of its proper divisors (3187934018118).

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

2103021112122 is a wasteful number, since it uses less digits than its factorization.

2103021112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889108 (or 889105 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2103021112122 its reverse (2212111203012), we get a palindrome (4315132315134).

The spelling of 2103021112122 in words is "two trillion, one hundred three billion, twenty-one million, one hundred twelve thousand, one hundred twenty-two".