2012200121012 has 18 divisors (see below), whose sum is σ = 3609331609254. Its totient is φ = 981561031360.

The previous prime is 2012200121011. The next prime is 2012200121077. The reversal of 2012200121012 is 2101210022102.

It can be written as a sum of positive squares in 3 ways, for example, as 54903987856 + 1957296133156 = 234316^2 + 1399034^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012200121011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149621483 + ... + 149634930.

Almost surely, 2^{2012200121012} is an apocalyptic number.

It is an amenable number.

2012200121012 is a deficient number, since it is larger than the sum of its proper divisors (1597131488242).

2012200121012 is a wasteful number, since it uses less digits than its factorization.

2012200121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299256499 (or 299256456 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2012200121012 its reverse (2101210022102), we get a palindrome (4113410143114).

The spelling of 2012200121012 in words is "two trillion, twelve billion, two hundred million, one hundred twenty-one thousand, twelve".