221600060 has 48 divisors (see below), whose sum is σ = 512743392. Its totient is φ = 79776000.

The previous prime is 221600053. The next prime is 221600063. The reversal of 221600060 is 60006122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221600063) 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, 17234 + ... + 27206.

It is an arithmetic number, because the mean of its divisors is an integer number (10682154).

Almost surely, 2^221600060 is an apocalyptic number.

221600060 is a gapful number since it is divisible by the number (20) 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 221600060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256371696).

221600060 is an abundant number, since it is smaller than the sum of its proper divisors (291143332).

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

221600060 is a wasteful number, since it uses less digits than its factorization.

221600060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094 (or 10092 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 221600060 is about 14886.2372680271. The cubic root of 221600060 is about 605.1410640260.

Adding to 221600060 its reverse (60006122), we get a palindrome (281606182).

The spelling of 221600060 in words is "two hundred twenty-one million, six hundred thousand, sixty".