122406650 has 12 divisors (see below), whose sum is σ = 227676462. Its totient is φ = 48962640.

The previous prime is 122406649. The next prime is 122406653. The reversal of 122406650 is 56604221.

It can be written as a sum of positive squares in 3 ways, for example, as 65237929 + 57168721 = 8077^2 + 7561^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122406653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1224017 + ... + 1224116.

Almost surely, 2^122406650 is an apocalyptic number.

122406650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122406650 is a deficient number, since it is larger than the sum of its proper divisors (105269812).

122406650 is a wasteful number, since it uses less digits than its factorization.

122406650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448145 (or 2448140 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 122406650 is about 11063.7538837413. The cubic root of 122406650 is about 496.5180077487.

The spelling of 122406650 in words is "one hundred twenty-two million, four hundred six thousand, six hundred fifty".