122722308 has 18 divisors (see below), whose sum is σ = 310214814. Its totient is φ = 40907424.

The previous prime is 122722297. The next prime is 122722309. The reversal of 122722308 is 803227221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66292164 + 56430144 = 8142^2 + 7512^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122722309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1704441 + ... + 1704512.

Almost surely, 2^122722308 is an apocalyptic number.

122722308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

122722308 is an abundant number, since it is smaller than the sum of its proper divisors (187492506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122722308 is a wasteful number, since it uses less digits than its factorization.

122722308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408963 (or 3408958 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 122722308 is about 11078.0101101236. The cubic root of 122722308 is about 496.9444425075.

Adding to 122722308 its reverse (803227221), we get a palindrome (925949529).

The spelling of 122722308 in words is "one hundred twenty-two million, seven hundred twenty-two thousand, three hundred eight".