12021012210947 has 2 divisors, whose sum is σ = 12021012210948. Its totient is φ = 12021012210946.

The previous prime is 12021012210937. The next prime is 12021012211027. The reversal of 12021012210947 is 74901221012021.

12021012210947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (74901221012021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12021012210947 - 2¹² = 12021012206851 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021012210937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010506105473 + 6010506105474.

It is an arithmetic number, because the mean of its divisors is an integer number (6010506105474).

Almost surely, 2^{12021012210947} is an apocalyptic number.

12021012210947 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021012210947 is an equidigital number, since it uses as much as digits as its factorization.

12021012210947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

Adding to 12021012210947 its reverse (74901221012021), we get a palindrome (86922233222968).

The spelling of 12021012210947 in words is "twelve trillion, twenty-one billion, twelve million, two hundred ten thousand, nine hundred forty-seven".