222106236 has 48 divisors (see below), whose sum is σ = 569856000. Its totient is φ = 66769920.

The previous prime is 222106229. The next prime is 222106237. The reversal of 222106236 is 632601222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222106237) 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, 10140 + ... + 23388.

It is an arithmetic number, because the mean of its divisors is an integer number (11872000).

Almost surely, 2^222106236 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 222106236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284928000).

222106236 is an abundant number, since it is smaller than the sum of its proper divisors (347749764).

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

222106236 is a wasteful number, since it uses less digits than its factorization.

222106236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13394 (or 13392 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 222106236 is about 14903.2290460826. The cubic root of 222106236 is about 605.6014654616.

Adding to 222106236 its reverse (632601222), we get a palindrome (854707458).

The spelling of 222106236 in words is "two hundred twenty-two million, one hundred six thousand, two hundred thirty-six".