2812122700 has 36 divisors (see below), whose sum is σ = 6119967672. Its totient is φ = 1121593600.

The previous prime is 2812122697. The next prime is 2812122701. The reversal of 2812122700 is 72212182.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2812122701) 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 11 ways as a sum of consecutive naturals, for example, 5821 + ... + 75220.

It is an arithmetic number, because the mean of its divisors is an integer number (169999102).

Almost surely, 2^2812122700 is an apocalyptic number.

2812122700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2812122700 is an abundant number, since it is smaller than the sum of its proper divisors (3307844972).

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

2812122700 is a wasteful number, since it uses less digits than its factorization.

2812122700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81402 (or 81395 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 2812122700 is about 53029.4512511680. The cubic root of 2812122700 is about 1411.4909199843.

Adding to 2812122700 its reverse (72212182), we get a palindrome (2884334882).

The spelling of 2812122700 in words is "two billion, eight hundred twelve million, one hundred twenty-two thousand, seven hundred".