1000001222222 has 8 divisors (see below), whose sum is σ = 1525425593400. Its totient is φ = 491526024424.

The previous prime is 1000001222177. The next prime is 1000001222249. The reversal of 1000001222222 is 2222221000001.

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 = 1000001222197 and 1000001222206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4237293197 + ... + 4237293432.

It is an arithmetic number, because the mean of its divisors is an integer number (190678199175).

Almost surely, 2^{1000001222222} is an apocalyptic number.

1000001222222 is a deficient number, since it is larger than the sum of its proper divisors (525424371178).

1000001222222 is an equidigital number, since it uses as much as digits as its factorization.

1000001222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474586690.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1000001222222 its reverse (2222221000001), we get a palindrome (3222222222223).

It can be divided in two parts, 1000001 and 222222, that multiplied together give a palindrome (222222222222).

The spelling of 1000001222222 in words is "one trillion, one million, two hundred twenty-two thousand, two hundred twenty-two".