2121402303212 has 24 divisors (see below), whose sum is σ = 3802034588352. Its totient is φ = 1035148842000.

The previous prime is 2121402303197. The next prime is 2121402303247. The reversal of 2121402303212 is 2123032041212.

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, 5064914 + ... + 5467737.

It is an arithmetic number, because the mean of its divisors is an integer number (158418107848).

Almost surely, 2^{2121402303212} is an apocalyptic number.

It is an amenable number.

2121402303212 is a deficient number, since it is larger than the sum of its proper divisors (1680632285140).

2121402303212 is a wasteful number, since it uses less digits than its factorization.

2121402303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10533869 (or 10533867 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2121402303212 its reverse (2123032041212), we get a palindrome (4244434344424).

The spelling of 2121402303212 in words is "two trillion, one hundred twenty-one billion, four hundred two million, three hundred three thousand, two hundred twelve".