122235666 has 64 divisors (see below), whose sum is σ = 290390016. Its totient is φ = 33566400.

The previous prime is 122235613. The next prime is 122235689. The reversal of 122235666 is 666532221.

It is a plaindrome in base 10.

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, 290136 + ... + 290556.

It is an arithmetic number, because the mean of its divisors is an integer number (4537344).

Almost surely, 2^122235666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122235666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145195008).

122235666 is an abundant number, since it is smaller than the sum of its proper divisors (168154350).

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

122235666 is a wasteful number, since it uses less digits than its factorization.

122235666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its digits is 25920, while the sum is 33.

The square root of 122235666 is about 11056.0239688597. The cubic root of 122235666 is about 496.2867125942.

Adding to 122235666 its reverse (666532221), we get a palindrome (788767887).

The spelling of 122235666 in words is "one hundred twenty-two million, two hundred thirty-five thousand, six hundred sixty-six".