2121012313012 has 6 divisors (see below), whose sum is σ = 3711771547778. Its totient is φ = 1060506156504.

The previous prime is 2121012313003. The next prime is 2121012313039. The reversal of 2121012313012 is 2103132101212.

It can be written as a sum of positive squares in only one way, i.e., 1297717402276 + 823294910736 = 1139174^2 + 907356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265126539123 + ... + 265126539130.

Almost surely, 2^{2121012313012} is an apocalyptic number.

It is an amenable number.

2121012313012 is a deficient number, since it is larger than the sum of its proper divisors (1590759234766).

2121012313012 is a wasteful number, since it uses less digits than its factorization.

2121012313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530253078257 (or 530253078255 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2121012313012 its reverse (2103132101212), we get a palindrome (4224144414224).

The spelling of 2121012313012 in words is "two trillion, one hundred twenty-one billion, twelve million, three hundred thirteen thousand, twelve".