2101099312 has 80 divisors (see below), whose sum is σ = 4599705600. Its totient is φ = 922496256.

The previous prime is 2101099291. The next prime is 2101099313. The reversal of 2101099312 is 2139901012.

It is not an unprimeable number, because it can be changed into a prime (2101099313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 950913 + ... + 953119.

It is an arithmetic number, because the mean of its divisors is an integer number (57496320).

Almost surely, 2^2101099312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101099312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2299852800).

2101099312 is an abundant number, since it is smaller than the sum of its proper divisors (2498606288).

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

2101099312 is a wasteful number, since it uses less digits than its factorization.

2101099312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2101099312 is about 45837.7498575137. The cubic root of 2101099312 is about 1280.8025793477.

The spelling of 2101099312 in words is "two billion, one hundred one million, ninety-nine thousand, three hundred twelve".