212101011201223 has 2 divisors, whose sum is σ = 212101011201224. Its totient is φ = 212101011201222.

The previous prime is 212101011201187. The next prime is 212101011201239. The reversal of 212101011201223 is 322102110101212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212101011201223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212101011201223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212101011201323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050505600611 + 106050505600612.

It is an arithmetic number, because the mean of its divisors is an integer number (106050505600612).

Almost surely, 2^{212101011201223} is an apocalyptic number.

212101011201223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101011201223 is an equidigital number, since it uses as much as digits as its factorization.

212101011201223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 212101011201223 its reverse (322102110101212), we get a palindrome (534203121302435).

The spelling of 212101011201223 in words is "two hundred twelve trillion, one hundred one billion, eleven million, two hundred one thousand, two hundred twenty-three".