212143312221223 has 2 divisors, whose sum is σ = 212143312221224. Its totient is φ = 212143312221222.

The previous prime is 212143312221187. The next prime is 212143312221257. The reversal of 212143312221223 is 322122213341212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212143312221223 - 2¹³ = 212143312213031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212143313221223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106071656110611 + 106071656110612.

It is an arithmetic number, because the mean of its divisors is an integer number (106071656110612).

Almost surely, 2^{212143312221223} is an apocalyptic number.

212143312221223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212143312221223 is an equidigital number, since it uses as much as digits as its factorization.

212143312221223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 31.

Adding to 212143312221223 its reverse (322122213341212), we get a palindrome (534265525562435).

The spelling of 212143312221223 in words is "two hundred twelve trillion, one hundred forty-three billion, three hundred twelve million, two hundred twenty-one thousand, two hundred twenty-three".