122206650 has 96 divisors (see below), whose sum is σ = 320979456. Its totient is φ = 30720000.

The previous prime is 122206649. The next prime is 122206657. The reversal of 122206650 is 56602221.

It is a self number, because there is not a number n which added to its sum of digits gives 122206650.

It is not an unprimeable number, because it can be changed into a prime (122206657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190330 + ... + 190970.

It is an arithmetic number, because the mean of its divisors is an integer number (3343536).

Almost surely, 2^122206650 is an apocalyptic number.

122206650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122206650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160489728).

122206650 is an abundant number, since it is smaller than the sum of its proper divisors (198772806).

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

122206650 is a wasteful number, since it uses less digits than its factorization.

122206650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 723 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 122206650 is about 11054.7116651679. The cubic root of 122206650 is about 496.2474403825.

Adding to 122206650 its reverse (56602221), we get a palindrome (178808871).

The spelling of 122206650 in words is "one hundred twenty-two million, two hundred six thousand, six hundred fifty".