1000221202222 has 32 divisors (see below), whose sum is σ = 1648385794944. Its totient is φ = 451412546400.

The previous prime is 1000221202217. The next prime is 1000221202223. The reversal of 1000221202222 is 2222021220001.

It is a junction number, because it is equal to n+sod(n) for n = 1000221202196 and 1000221202205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000221202223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3524713 + ... + 3797899.

It is an arithmetic number, because the mean of its divisors is an integer number (51512056092).

Almost surely, 2^{1000221202222} is an apocalyptic number.

1000221202222 is a deficient number, since it is larger than the sum of its proper divisors (648164592722).

1000221202222 is a wasteful number, since it uses less digits than its factorization.

1000221202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274384.

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

Adding to 1000221202222 its reverse (2222021220001), we get a palindrome (3222242422223).

The spelling of 1000221202222 in words is "one trillion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-two".