2012225100 has 72 divisors (see below), whose sum is σ = 5945952768. Its totient is φ = 525172800.

The previous prime is 2012225093. The next prime is 2012225123. The reversal of 2012225100 is 15222102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2012225100.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 57256 + ... + 85455.

Almost surely, 2^2012225100 is an apocalyptic number.

2012225100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012225100 is an abundant number, since it is smaller than the sum of its proper divisors (3933727668).

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

2012225100 is a wasteful number, since it uses less digits than its factorization.

2012225100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142775 (or 142768 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 2012225100 is about 44857.8320920662. The cubic root of 2012225100 is about 1262.4829471931.

Adding to 2012225100 its reverse (15222102), we get a palindrome (2027447202).

The spelling of 2012225100 in words is "two billion, twelve million, two hundred twenty-five thousand, one hundred".