212021113223 has 2 divisors, whose sum is σ = 212021113224. Its totient is φ = 212021113222.

The previous prime is 212021113193. The next prime is 212021113229. The reversal of 212021113223 is 322311120212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021113223 - 2⁸ = 212021112967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212021113195 and 212021113204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021113229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010556611 + 106010556612.

It is an arithmetic number, because the mean of its divisors is an integer number (106010556612).

Almost surely, 2^212021113223 is an apocalyptic number.

212021113223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021113223 is an equidigital number, since it uses as much as digits as its factorization.

212021113223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212021113223 its reverse (322311120212), we get a palindrome (534332233435).

The spelling of 212021113223 in words is "two hundred twelve billion, twenty-one million, one hundred thirteen thousand, two hundred twenty-three".