2100412020 has 48 divisors (see below), whose sum is σ = 6721319808. Its totient is φ = 480094080.

The previous prime is 2100412009. The next prime is 2100412063. The reversal of 2100412020 is 202140012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2100411987 and 2100412005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2500071 + ... + 2500910.

It is an arithmetic number, because the mean of its divisors is an integer number (140027496).

Almost surely, 2^2100412020 is an apocalyptic number.

2100412020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100412020 is an abundant number, since it is smaller than the sum of its proper divisors (4620907788).

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

2100412020 is a wasteful number, since it uses less digits than its factorization.

2100412020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001000 (or 5000998 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2100412020 is about 45830.2522358322. The cubic root of 2100412020 is about 1280.6629093882.

Adding to 2100412020 its reverse (202140012), we get a palindrome (2302552032).

The spelling of 2100412020 in words is "two billion, one hundred million, four hundred twelve thousand, twenty".