122321761 has 2 divisors, whose sum is σ = 122321762. Its totient is φ = 122321760.

The previous prime is 122321747. The next prime is 122321767. The reversal of 122321761 is 167123221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115971361 + 6350400 = 10769^2 + 2520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122321761 is a prime.

It is a super-2 number, since 2×122321761² = 29925226428282242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122321767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61160880 + 61160881.

It is an arithmetic number, because the mean of its divisors is an integer number (61160881).

Almost surely, 2^122321761 is an apocalyptic number.

It is an amenable number.

122321761 is a deficient number, since it is larger than the sum of its proper divisors (1).

122321761 is an equidigital number, since it uses as much as digits as its factorization.

122321761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 25.

The square root of 122321761 is about 11059.9168622553. The cubic root of 122321761 is about 496.4032028087.

Adding to 122321761 its reverse (167123221), we get a palindrome (289444982).

The spelling of 122321761 in words is "one hundred twenty-two million, three hundred twenty-one thousand, seven hundred sixty-one".