122621722123 has 2 divisors, whose sum is σ = 122621722124. Its totient is φ = 122621722122.

The previous prime is 122621722099. The next prime is 122621722133. The reversal of 122621722123 is 321227126221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122621722123 - 2⁹ = 122621721611 is a prime.

It is not a weakly prime, because it can be changed into another prime (122621722133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61310861061 + 61310861062.

It is an arithmetic number, because the mean of its divisors is an integer number (61310861062).

Almost surely, 2^122621722123 is an apocalyptic number.

122621722123 is a deficient number, since it is larger than the sum of its proper divisors (1).

122621722123 is an equidigital number, since it uses as much as digits as its factorization.

122621722123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

Adding to 122621722123 its reverse (321227126221), we get a palindrome (443848848344).

The spelling of 122621722123 in words is "one hundred twenty-two billion, six hundred twenty-one million, seven hundred twenty-two thousand, one hundred twenty-three".