2125044012 has 48 divisors (see below), whose sum is σ = 6102693632. Its totient is φ = 560450880.

The previous prime is 2125044001. The next prime is 2125044023. The reversal of 2125044012 is 2104405212.

It is an interprime number because it is at equal distance from previous prime (2125044001) and next prime (2125044023).

It is a super-2 number, since 2×2125044012² = 9031624105874112288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2125044012.

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 15 ways as a sum of consecutive naturals, for example, 971914 + ... + 974097.

Almost surely, 2^2125044012 is an apocalyptic number.

It is an amenable number.

2125044012 is an abundant number, since it is smaller than the sum of its proper divisors (3977649620).

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

2125044012 is a wasteful number, since it uses less digits than its factorization.

2125044012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946038 (or 1946036 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2125044012 is about 46098.1996611581. The cubic root of 2125044012 is about 1285.6496711302.

Adding to 2125044012 its reverse (2104405212), we get a palindrome (4229449224).

The spelling of 2125044012 in words is "two billion, one hundred twenty-five million, forty-four thousand, twelve".