1001223133211 has 8 divisors (see below), whose sum is σ = 1152989781504. Its totient is φ = 851640177960.

The previous prime is 1001223133171. The next prime is 1001223133223. The reversal of 1001223133211 is 1123313221001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001223133211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001223133111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 545922275 + ... + 545924108.

It is an arithmetic number, because the mean of its divisors is an integer number (144123722688).

Almost surely, 2^{1001223133211} is an apocalyptic number.

1001223133211 is a deficient number, since it is larger than the sum of its proper divisors (151766648293).

1001223133211 is a wasteful number, since it uses less digits than its factorization.

1001223133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091846521.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1001223133211 its reverse (1123313221001), we get a palindrome (2124536354212).

The spelling of 1001223133211 in words is "one trillion, one billion, two hundred twenty-three million, one hundred thirty-three thousand, two hundred eleven".