2101000122 has 24 divisors (see below), whose sum is σ = 4902334164. Its totient is φ = 646461504.

The previous prime is 2101000093. The next prime is 2101000171. The reversal of 2101000122 is 2210001012.

It can be written as a sum of positive squares in 2 ways, for example, as 2058346161 + 42653961 = 45369^2 + 6531^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4489083 + ... + 4489550.

Almost surely, 2^2101000122 is an apocalyptic number.

2101000122 is an abundant number, since it is smaller than the sum of its proper divisors (2801334042).

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

2101000122 is a wasteful number, since it uses less digits than its factorization.

2101000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978654 (or 8978651 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2101000122 is about 45836.6678762756. The cubic root of 2101000122 is about 1280.7824240563.

Adding to 2101000122 its reverse (2210001012), we get a palindrome (4311001134).

The spelling of 2101000122 in words is "two billion, one hundred one million, one hundred twenty-two", and thus it is an aban number.