122217606 has 64 divisors (see below), whose sum is σ = 311592960. Its totient is φ = 34784640.

The previous prime is 122217569. The next prime is 122217611. The reversal of 122217606 is 606712221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 122217606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138286 + ... + 139166.

It is an arithmetic number, because the mean of its divisors is an integer number (4868640).

Almost surely, 2^122217606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122217606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155796480).

122217606 is an abundant number, since it is smaller than the sum of its proper divisors (189375354).

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

122217606 is a wasteful number, since it uses less digits than its factorization.

122217606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 122217606 is about 11055.2071893746. The cubic root of 122217606 is about 496.2622697024.

Adding to 122217606 its reverse (606712221), we get a palindrome (728929827).

The spelling of 122217606 in words is "one hundred twenty-two million, two hundred seventeen thousand, six hundred six".