221032002222 has 12 divisors (see below), whose sum is σ = 478902671520. Its totient is φ = 73677334068.

The previous prime is 221032002209. The next prime is 221032002277. The reversal of 221032002222 is 222200230122.

221032002222 is digitally balanced in base 7, because in such base 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 (18), and also a Moran number because the ratio is a prime number: 12279555679 = 221032002222 / (2 + 2 + 1 + 0 + 3 + 2 + 0 + 0 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 221032002195 and 221032002204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6139777822 + ... + 6139777857.

It is an arithmetic number, because the mean of its divisors is an integer number (39908555960).

Almost surely, 2^221032002222 is an apocalyptic number.

221032002222 is an abundant number, since it is smaller than the sum of its proper divisors (257870669298).

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

221032002222 is a wasteful number, since it uses less digits than its factorization.

221032002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12279555687 (or 12279555684 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 221032002222 its reverse (222200230122), we get a palindrome (443232232344).

The spelling of 221032002222 in words is "two hundred twenty-one billion, thirty-two million, two thousand, two hundred twenty-two".