2091204812 has 12 divisors (see below), whose sum is σ = 3675731640. Its totient is φ = 1040995776.

The previous prime is 2091204803. The next prime is 2091204823. The reversal of 2091204812 is 2184021902.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150637 + ... + 1152452.

It is an arithmetic number, because the mean of its divisors is an integer number (306310970).

Almost surely, 2^2091204812 is an apocalyptic number.

It is an amenable number.

2091204812 is a deficient number, since it is larger than the sum of its proper divisors (1584526828).

2091204812 is a wasteful number, since it uses less digits than its factorization.

2091204812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303320 (or 2303318 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 2091204812 is about 45729.6928920368. The cubic root of 2091204812 is about 1278.7888959489.

It can be divided in two parts, 209 and 1204812, that added together give a palindrome (1205021).

The spelling of 2091204812 in words is "two billion, ninety-one million, two hundred four thousand, eight hundred twelve".