122121111210223 has 2 divisors, whose sum is σ = 122121111210224. Its totient is φ = 122121111210222.

The previous prime is 122121111210211. The next prime is 122121111210239. The reversal of 122121111210223 is 322012111121221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122121111210223 - 2¹³ = 122121111202031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122121111210194 and 122121111210203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121111210253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060555605111 + 61060555605112.

It is an arithmetic number, because the mean of its divisors is an integer number (61060555605112).

Almost surely, 2^{122121111210223} is an apocalyptic number.

122121111210223 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121111210223 is an equidigital number, since it uses as much as digits as its factorization.

122121111210223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 122121111210223 its reverse (322012111121221), we get a palindrome (444133222331444).

The spelling of 122121111210223 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, two hundred twenty-three".