122340661 has 2 divisors, whose sum is σ = 122340662. Its totient is φ = 122340660.

The previous prime is 122340649. The next prime is 122340709. The reversal of 122340661 is 166043221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94187025 + 28153636 = 9705^2 + 5306^2 .

It is a cyclic number.

It is not a de Polignac number, because 122340661 - 2⁵ = 122340629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122340961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61170330 + 61170331.

It is an arithmetic number, because the mean of its divisors is an integer number (61170331).

Almost surely, 2^122340661 is an apocalyptic number.

It is an amenable number.

122340661 is a deficient number, since it is larger than the sum of its proper divisors (1).

122340661 is an equidigital number, since it uses as much as digits as its factorization.

122340661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 122340661 is about 11060.7712660555. The cubic root of 122340661 is about 496.4287679992.

Adding to 122340661 its reverse (166043221), we get a palindrome (288383882).

The spelling of 122340661 in words is "one hundred twenty-two million, three hundred forty thousand, six hundred sixty-one".