20121212121002 has 16 divisors (see below), whose sum is σ = 31158037228032. Its totient is φ = 9735254128560.

The previous prime is 20121212120993. The next prime is 20121212121013. The reversal of 20121212121002 is 20012121212102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12858398 + ... + 14338089.

It is an arithmetic number, because the mean of its divisors is an integer number (1947377326752).

Almost surely, 2^{20121212121002} is an apocalyptic number.

20121212121002 is a deficient number, since it is larger than the sum of its proper divisors (11036825107030).

20121212121002 is a wasteful number, since it uses less digits than its factorization.

20121212121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27208453.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20121212121002 its reverse (20012121212102), we get a palindrome (40133333333104).

It can be divided in two parts, 2012121212100 and 2, that added together give a palindrome (2012121212102).

The spelling of 20121212121002 in words is "twenty trillion, one hundred twenty-one billion, two hundred twelve million, one hundred twenty-one thousand, two".