20012212102012 has 48 divisors (see below), whose sum is σ = 37969977507840. Its totient is φ = 9174228193728.

The previous prime is 20012212101977. The next prime is 20012212102013. The reversal of 20012212102012 is 21020121221002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012212102013) 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 15 ways as a sum of consecutive naturals, for example, 3189189 + ... + 7084867.

It is an arithmetic number, because the mean of its divisors is an integer number (791041198080).

Almost surely, 2^{20012212102012} is an apocalyptic number.

It is an amenable number.

20012212102012 is a deficient number, since it is larger than the sum of its proper divisors (17957765405828).

20012212102012 is a wasteful number, since it uses less digits than its factorization.

20012212102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896362 (or 3896360 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20012212102012 its reverse (21020121221002), we get a palindrome (41032333323014).

The spelling of 20012212102012 in words is "twenty trillion, twelve billion, two hundred twelve million, one hundred two thousand, twelve".