20512545330212 has 96 divisors (see below), whose sum is σ = 40756629365760. Its totient is φ = 8968498122240.

The previous prime is 20512545330203. The next prime is 20512545330217. The reversal of 20512545330212 is 21203354521502.

It is not an unprimeable number, because it can be changed into a prime (20512545330217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13880498 + ... + 15287030.

It is an arithmetic number, because the mean of its divisors is an integer number (424548222560).

Almost surely, 2^{20512545330212} is an apocalyptic number.

It is an amenable number.

20512545330212 is a deficient number, since it is larger than the sum of its proper divisors (20244084035548).

20512545330212 is a wasteful number, since it uses less digits than its factorization.

20512545330212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406773 (or 1406771 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20512545330212 its reverse (21203354521502), we get a palindrome (41715899851714).

The spelling of 20512545330212 in words is "twenty trillion, five hundred twelve billion, five hundred forty-five million, three hundred thirty thousand, two hundred twelve".