10221220222 has 24 divisors (see below), whose sum is σ = 15511257216. Its totient is φ = 5051340000.

The previous prime is 10221220213. The next prime is 10221220291. The reversal of 10221220222 is 22202212201.

It is a junction number, because it is equal to n+sod(n) for n = 10221220196 and 10221220205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17006722 + ... + 17007322.

It is an arithmetic number, because the mean of its divisors is an integer number (646302384).

Almost surely, 2^10221220222 is an apocalyptic number.

10221220222 is a deficient number, since it is larger than the sum of its proper divisors (5290036994).

10221220222 is an equidigital number, since it uses as much as digits as its factorization.

10221220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1005 counting only the distinct ones).

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

Adding to 10221220222 its reverse (22202212201), we get a palindrome (32423432423).

The spelling of 10221220222 in words is "ten billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".