122209626 has 192 divisors, whose sum is σ = 340402176. Its totient is φ = 28828800.

The previous prime is 122209559. The next prime is 122209669. The reversal of 122209626 is 626902221.

It is a junction number, because it is equal to n+sod(n) for n = 122209593 and 122209602.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 2305816 + ... + 2305868.

It is an arithmetic number, because the mean of its divisors is an integer number (1772928).

Almost surely, 2^122209626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122209626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170201088).

122209626 is an abundant number, since it is smaller than the sum of its proper divisors (218192550).

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

122209626 is a wasteful number, since it uses less digits than its factorization.

122209626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 122209626 is about 11054.8462675878. The cubic root of 122209626 is about 496.2514685878.

The spelling of 122209626 in words is "one hundred twenty-two million, two hundred nine thousand, six hundred twenty-six".