1001211221006 has 8 divisors (see below), whose sum is σ = 1501840541520. Its totient is φ = 500597707168.

The previous prime is 1001211220987. The next prime is 1001211221033. The reversal of 1001211221006 is 6001221121001.

1001211221006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3792026 + ... + 4047453.

It is an arithmetic number, because the mean of its divisors is an integer number (187730067690).

Almost surely, 2^{1001211221006} is an apocalyptic number.

1001211221006 is a deficient number, since it is larger than the sum of its proper divisors (500629320514).

1001211221006 is an equidigital number, since it uses as much as digits as its factorization.

1001211221006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7903338.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1001211221006 its reverse (6001221121001), we get a palindrome (7002432342007).

The spelling of 1001211221006 in words is "one trillion, one billion, two hundred eleven million, two hundred twenty-one thousand, six".