2100550012 has 24 divisors (see below), whose sum is σ = 4011828912. Its totient is φ = 954393600.

The previous prime is 2100549947. The next prime is 2100550013.

2100550012 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100550013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112462 + ... + 129802.

It is an arithmetic number, because the mean of its divisors is an integer number (167159538).

Almost surely, 2^2100550012 is an apocalyptic number.

2100550012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2100550012 is a deficient number, since it is larger than the sum of its proper divisors (1911278900).

2100550012 is a wasteful number, since it uses less digits than its factorization.

2100550012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20109 (or 20107 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2100550012 is about 45831.7576795828. The cubic root of 2100550012 is about 1280.6909542614.

It can be divided in two parts, 21005 and 50012, that added together give a palindrome (71017).

The spelling of 2100550012 in words is "two billion, one hundred million, five hundred fifty thousand, twelve".