220002222 has 64 divisors (see below), whose sum is σ = 514543104. Its totient is φ = 62029440.

The previous prime is 220002203. The next prime is 220002283. The reversal of 220002222 is 222200022.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 220002198 and 220002207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54208 + ... + 58124.

It is an arithmetic number, because the mean of its divisors is an integer number (8039736).

Almost surely, 2^220002222 is an apocalyptic number.

220002222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 220002222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257271552).

220002222 is an abundant number, since it is smaller than the sum of its proper divisors (294540882).

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

220002222 is a wasteful number, since it uses less digits than its factorization.

220002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993.

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

The square root of 220002222 is about 14832.4718776069. The cubic root of 220002222 is about 603.6831060659.

Adding to 220002222 its reverse (222200022), we get a palindrome (442202244).

It can be divided in two parts, 2200022 and 22, that multiplied together give a palindrome (48400484).

The spelling of 220002222 in words is "two hundred twenty million, two thousand, two hundred twenty-two".