122320223212261 has 2 divisors, whose sum is σ = 122320223212262. Its totient is φ = 122320223212260.

The previous prime is 122320223212259. The next prime is 122320223212331. The reversal of 122320223212261 is 162212322023221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121052673731236 + 1267549481025 = 11002394^2 + 1125855^2 .

It is a cyclic number.

It is not a de Polignac number, because 122320223212261 - 2¹ = 122320223212259 is a prime.

Together with 122320223212259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122320223212241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61160111606130 + 61160111606131.

It is an arithmetic number, because the mean of its divisors is an integer number (61160111606131).

Almost surely, 2^{122320223212261} is an apocalyptic number.

It is an amenable number.

122320223212261 is a deficient number, since it is larger than the sum of its proper divisors (1).

122320223212261 is an equidigital number, since it uses as much as digits as its factorization.

122320223212261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 122320223212261 its reverse (162212322023221), we get a palindrome (284532545235482).

The spelling of 122320223212261 in words is "one hundred twenty-two trillion, three hundred twenty billion, two hundred twenty-three million, two hundred twelve thousand, two hundred sixty-one".