222006616 has 64 divisors (see below), whose sum is σ = 461815200. Its totient is φ = 99422208.

The previous prime is 222006613. The next prime is 222006619. The reversal of 222006616 is 616600222.

222006616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222006613) and next prime (222006619).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222006611) 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, 595006 + ... + 595378.

Almost surely, 2^222006616 is an apocalyptic number.

222006616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222006616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230907600).

222006616 is an abundant number, since it is smaller than the sum of its proper divisors (239808584).

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

222006616 is a wasteful number, since it uses less digits than its factorization.

222006616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 222006616 is about 14899.8864425203. The cubic root of 222006616 is about 605.5109096370.

Adding to 222006616 its reverse (616600222), we get a palindrome (838606838).

The spelling of 222006616 in words is "two hundred twenty-two million, six thousand, six hundred sixteen".