122223556 has 48 divisors (see below), whose sum is σ = 264176640. Its totient is φ = 48182400.

The previous prime is 122223551. The next prime is 122223571. The reversal of 122223556 is 655322221.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (122223551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174006 + ... + 174706.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^122223556 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122223556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132088320).

122223556 is an abundant number, since it is smaller than the sum of its proper divisors (141953084).

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

122223556 is a wasteful number, since it uses less digits than its factorization.

122223556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1202 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 122223556 is about 11055.4762900564. The cubic root of 122223556 is about 496.2703228590.

Adding to 122223556 its reverse (655322221), we get a palindrome (777545777).

The spelling of 122223556 in words is "one hundred twenty-two million, two hundred twenty-three thousand, five hundred fifty-six".