122222011222123 has 2 divisors, whose sum is σ = 122222011222124. Its totient is φ = 122222011222122.

The previous prime is 122222011222109. The next prime is 122222011222159. The reversal of 122222011222123 is 321222110222221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122222011222123 - 2⁴¹ = 120022987966571 is a prime.

It is not a weakly prime, because it can be changed into another prime (122222011220123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111005611061 + 61111005611062.

It is an arithmetic number, because the mean of its divisors is an integer number (61111005611062).

Almost surely, 2^{122222011222123} is an apocalyptic number.

122222011222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222011222123 is an equidigital number, since it uses as much as digits as its factorization.

122222011222123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 122222011222123 its reverse (321222110222221), we get a palindrome (443444121444344).

The spelling of 122222011222123 in words is "one hundred twenty-two trillion, two hundred twenty-two billion, eleven million, two hundred twenty-two thousand, one hundred twenty-three".