122660522321 has 2 divisors, whose sum is σ = 122660522322. Its totient is φ = 122660522320.

The previous prime is 122660522293. The next prime is 122660522323. The reversal of 122660522321 is 123225066221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122577712321 + 82810000 = 350111^2 + 9100^2 .

It is a cyclic number.

It is not a de Polignac number, because 122660522321 - 2¹⁰ = 122660521297 is a prime.

Together with 122660522323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122660522323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61330261160 + 61330261161.

It is an arithmetic number, because the mean of its divisors is an integer number (61330261161).

Almost surely, 2^122660522321 is an apocalyptic number.

It is an amenable number.

122660522321 is a deficient number, since it is larger than the sum of its proper divisors (1).

122660522321 is an equidigital number, since it uses as much as digits as its factorization.

122660522321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 122660522321 its reverse (123225066221), we get a palindrome (245885588542).

The spelling of 122660522321 in words is "one hundred twenty-two billion, six hundred sixty million, five hundred twenty-two thousand, three hundred twenty-one".