2012200102100 has 18 divisors (see below), whose sum is σ = 4366474221774. Its totient is φ = 804880040800.

The previous prime is 2012200102049. The next prime is 2012200102163. The reversal of 2012200102100 is 12010022102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 15981510724 + 1996218591376 = 126418^2 + 1412876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10061000411 + ... + 10061000610.

Almost surely, 2^{2012200102100} is an apocalyptic number.

2012200102100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012200102100 is an abundant number, since it is smaller than the sum of its proper divisors (2354274119674).

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

2012200102100 is a wasteful number, since it uses less digits than its factorization.

2012200102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20122001035 (or 20122001028 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2012200102100 its reverse (12010022102), we get a palindrome (2024210124202).

The spelling of 2012200102100 in words is "two trillion, twelve billion, two hundred million, one hundred two thousand, one hundred".