222036660 has 288 divisors, whose sum is σ = 783457920. Its totient is φ = 52005888.

The previous prime is 222036653. The next prime is 222036691. The reversal of 222036660 is 66630222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3313947 + ... + 3314013.

It is an arithmetic number, because the mean of its divisors is an integer number (2720340).

Almost surely, 2^222036660 is an apocalyptic number.

222036660 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 222036660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391728960).

222036660 is an abundant number, since it is smaller than the sum of its proper divisors (561421260).

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

222036660 is a wasteful number, since it uses less digits than its factorization.

222036660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 222036660 is about 14900.8946040162. The cubic root of 222036660 is about 605.5382228608.

Adding to 222036660 its reverse (66630222), we get a palindrome (288666882).

The spelling of 222036660 in words is "two hundred twenty-two million, thirty-six thousand, six hundred sixty".