122730722 has 8 divisors (see below), whose sum is σ = 187569756. Its totient is φ = 60207472.

The previous prime is 122730703. The next prime is 122730731. The reversal of 122730722 is 227037221.

It can be written as a sum of positive squares in 2 ways, for example, as 118613881 + 4116841 = 10891^2 + 2029^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 122730691 and 122730700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578813 + ... + 579024.

Almost surely, 2^122730722 is an apocalyptic number.

122730722 is a deficient number, since it is larger than the sum of its proper divisors (64839034).

122730722 is a wasteful number, since it uses less digits than its factorization.

122730722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157892.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 122730722 is about 11078.3898649578. The cubic root of 122730722 is about 496.9557992990.

Adding to 122730722 its reverse (227037221), we get a palindrome (349767943).

The spelling of 122730722 in words is "one hundred twenty-two million, seven hundred thirty thousand, seven hundred twenty-two".