2126012020 has 48 divisors (see below), whose sum is σ = 4983789888. Its totient is φ = 755112960.

The previous prime is 2126011981. The next prime is 2126012029. The reversal of 2126012020 is 202106212.

It is a junction number, because it is equal to n+sod(n) for n = 2126011985 and 2126012003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126012029) by changing a digit.

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, 102909 + ... + 121828.

It is an arithmetic number, because the mean of its divisors is an integer number (103828956).

Almost surely, 2^2126012020 is an apocalyptic number.

2126012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2126012020 is an abundant number, since it is smaller than the sum of its proper divisors (2857777868).

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

2126012020 is a wasteful number, since it uses less digits than its factorization.

2126012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224800 (or 224798 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2126012020 is about 46108.6978779492. The cubic root of 2126012020 is about 1285.8448561457.

Adding to 2126012020 its reverse (202106212), we get a palindrome (2328118232).

The spelling of 2126012020 in words is "two billion, one hundred twenty-six million, twelve thousand, twenty".