2821101912 has 64 divisors (see below), whose sum is σ = 8248848000. Its totient is φ = 890872992.

The previous prime is 2821101911. The next prime is 2821101919. The reversal of 2821101912 is 2191011282.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821101911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339598 + ... + 347805.

It is an arithmetic number, because the mean of its divisors is an integer number (128888250).

Almost surely, 2^2821101912 is an apocalyptic number.

It is an amenable number.

2821101912 is an abundant number, since it is smaller than the sum of its proper divisors (5427746088).

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

2821101912 is a wasteful number, since it uses less digits than its factorization.

2821101912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687437 (or 687427 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 2821101912 is about 53114.0462777974. The cubic root of 2821101912 is about 1412.9916381058.

The spelling of 2821101912 in words is "two billion, eight hundred twenty-one million, one hundred one thousand, nine hundred twelve".