212100000022243 has 2 divisors, whose sum is σ = 212100000022244. Its totient is φ = 212100000022242.

The previous prime is 212100000022213. The next prime is 212100000022249. The reversal of 212100000022243 is 342220000001212.

212100000022243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212100000022243 - 2¹³ = 212100000014051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212100000022243.

It is not a weakly prime, because it can be changed into another prime (212100000022249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050000011121 + 106050000011122.

It is an arithmetic number, because the mean of its divisors is an integer number (106050000011122).

Almost surely, 2^{212100000022243} is an apocalyptic number.

212100000022243 is a deficient number, since it is larger than the sum of its proper divisors (1).

212100000022243 is an equidigital number, since it uses as much as digits as its factorization.

212100000022243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 212100000022243 its reverse (342220000001212), we get a palindrome (554320000023455).

The spelling of 212100000022243 in words is "two hundred twelve trillion, one hundred billion, twenty-two thousand, two hundred forty-three".