222220504 has 64 divisors (see below), whose sum is σ = 495072000. Its totient is φ = 92373120.

The previous prime is 222220477. The next prime is 222220519. The reversal of 222220504 is 405022222.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46197 + ... + 50779.

It is an arithmetic number, because the mean of its divisors is an integer number (7735500).

Almost surely, 2^222220504 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 222220504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247536000).

222220504 is an abundant number, since it is smaller than the sum of its proper divisors (272851496).

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

222220504 is a wasteful number, since it uses less digits than its factorization.

222220504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648 (or 4644 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 222220504 is about 14907.0622189619. The cubic root of 222220504 is about 605.7053031649.

Adding to 222220504 its reverse (405022222), we get a palindrome (627242726).

The spelling of 222220504 in words is "two hundred twenty-two million, two hundred twenty thousand, five hundred four".