212143144011121 has 2 divisors, whose sum is σ = 212143144011122. Its totient is φ = 212143144011120.

The previous prime is 212143144011109. The next prime is 212143144011179. The reversal of 212143144011121 is 121110441341212.

212143144011121 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 can be written as a sum of positive squares in only one way, i.e., 212141992359025 + 1151652096 = 14565095^2 + 33936^2 .

It is a cyclic number.

It is not a de Polignac number, because 212143144011121 - 2⁵ = 212143144011089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212143144011121.

It is not a weakly prime, because it can be changed into another prime (212143148011121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106071572005560 + 106071572005561.

It is an arithmetic number, because the mean of its divisors is an integer number (106071572005561).

Almost surely, 2^{212143144011121} is an apocalyptic number.

It is an amenable number.

212143144011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

212143144011121 is an equidigital number, since it uses as much as digits as its factorization.

212143144011121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 212143144011121 its reverse (121110441341212), we get a palindrome (333253585352333).

The spelling of 212143144011121 in words is "two hundred twelve trillion, one hundred forty-three billion, one hundred forty-four million, eleven thousand, one hundred twenty-one".