122688330 has 32 divisors (see below), whose sum is σ = 300720384. Its totient is φ = 32020416.

The previous prime is 122688289. The next prime is 122688341. The reversal of 122688330 is 33886221.

It is a junction number, because it is equal to n+sod(n) for n = 122688291 and 122688300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42097 + ... + 44916.

It is an arithmetic number, because the mean of its divisors is an integer number (9397512).

Almost surely, 2^122688330 is an apocalyptic number.

122688330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122688330 is an abundant number, since it is smaller than the sum of its proper divisors (178032054).

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

122688330 is a wasteful number, since it uses less digits than its factorization.

122688330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87070.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 122688330 is about 11076.4764252898. The cubic root of 122688330 is about 496.8985754409.

The spelling of 122688330 in words is "one hundred twenty-two million, six hundred eighty-eight thousand, three hundred thirty".