122722600 has 192 divisors, whose sum is σ = 383725440. Its totient is φ = 35251200.

The previous prime is 122722597. The next prime is 122722601. The reversal of 122722600 is 6227221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (122722601) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 199894 + ... + 200506.

It is an arithmetic number, because the mean of its divisors is an integer number (1998570).

Almost surely, 2^122722600 is an apocalyptic number.

122722600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122722600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191862720).

122722600 is an abundant number, since it is smaller than the sum of its proper divisors (261002840).

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

122722600 is a wasteful number, since it uses less digits than its factorization.

122722600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 122722600 is about 11078.0232893779. The cubic root of 122722600 is about 496.9448366430.

Adding to 122722600 its reverse (6227221), we get a palindrome (128949821).

The spelling of 122722600 in words is "one hundred twenty-two million, seven hundred twenty-two thousand, six hundred".