222004020 has 288 divisors, whose sum is σ = 792207360. Its totient is φ = 45434880.

The previous prime is 222003953. The next prime is 222004021. The reversal of 222004020 is 20400222.

It is a happy number.

222004020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 222003987 and 222004005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222004021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3762751 + ... + 3762809.

It is an arithmetic number, because the mean of its divisors is an integer number (2750720).

Almost surely, 2^222004020 is an apocalyptic number.

222004020 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 222004020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396103680).

222004020 is an abundant number, since it is smaller than the sum of its proper divisors (570203340).

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

222004020 is a wasteful number, since it uses less digits than its factorization.

222004020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 222004020 is about 14899.7993275077. The cubic root of 222004020 is about 605.5085494784.

Adding to 222004020 its reverse (20400222), we get a palindrome (242404242).

The spelling of 222004020 in words is "two hundred twenty-two million, four thousand, twenty".