2105236122 has 64 divisors (see below), whose sum is σ = 4658152320. Its totient is φ = 628992000.

The previous prime is 2105236093. The next prime is 2105236141. The reversal of 2105236122 is 2216325012.

It is a junction number, because it is equal to n+sod(n) for n = 2105236092 and 2105236101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2085954 + ... + 2086962.

It is an arithmetic number, because the mean of its divisors is an integer number (72783630).

Almost surely, 2^2105236122 is an apocalyptic number.

2105236122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105236122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2329076160).

2105236122 is an abundant number, since it is smaller than the sum of its proper divisors (2552916198).

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

2105236122 is a wasteful number, since it uses less digits than its factorization.

2105236122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2105236122 is about 45882.8521563340. The cubic root of 2105236122 is about 1281.6426099863.

The spelling of 2105236122 in words is "two billion, one hundred five million, two hundred thirty-six thousand, one hundred twenty-two".