1001000122222 has 8 divisors (see below), whose sum is σ = 1501525503576. Its totient is φ = 500491621032.

The previous prime is 1001000122211. The next prime is 1001000122237. The reversal of 1001000122222 is 2222210001001.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 4070733 + ... + 4309624.

It is an arithmetic number, because the mean of its divisors is an integer number (187690687947).

Almost surely, 2^{1001000122222} is an apocalyptic number.

1001000122222 is a deficient number, since it is larger than the sum of its proper divisors (500525381354).

1001000122222 is an equidigital number, since it uses as much as digits as its factorization.

1001000122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440082.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1001000122222 its reverse (2222210001001), we get a palindrome (3223210123223).

The spelling of 1001000122222 in words is "one trillion, one billion, one hundred twenty-two thousand, two hundred twenty-two".