221201002222 has 8 divisors (see below), whose sum is σ = 339517817496. Its totient is φ = 108028396392.

The previous prime is 221201002213. The next prime is 221201002223. The reversal of 221201002222 is 222200102122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221201002196 and 221201002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221201002223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286052253 + ... + 1286052424.

It is an arithmetic number, because the mean of its divisors is an integer number (42439727187).

Almost surely, 2^221201002222 is an apocalyptic number.

221201002222 is a deficient number, since it is larger than the sum of its proper divisors (118316815274).

221201002222 is a wasteful number, since it uses less digits than its factorization.

221201002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2572104722.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221201002222 its reverse (222200102122), we get a palindrome (443401104344).

The spelling of 221201002222 in words is "two hundred twenty-one billion, two hundred one million, two thousand, two hundred twenty-two".