2121301220012 has 24 divisors (see below), whose sum is σ = 4054144483872. Its totient is φ = 965272492800.

The previous prime is 2121301220011. The next prime is 2121301220063. The reversal of 2121301220012 is 2100221031212.

It is not an unprimeable number, because it can be changed into a prime (2121301220011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287279789 + ... + 287287172.

It is an arithmetic number, because the mean of its divisors is an integer number (168922686828).

Almost surely, 2^{2121301220012} is an apocalyptic number.

It is an amenable number.

2121301220012 is a deficient number, since it is larger than the sum of its proper divisors (1932843263860).

2121301220012 is a wasteful number, since it uses less digits than its factorization.

2121301220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574567049 (or 574567047 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2121301220012 its reverse (2100221031212), we get a palindrome (4221522251224).

The spelling of 2121301220012 in words is "two trillion, one hundred twenty-one billion, three hundred one million, two hundred twenty thousand, twelve".