1001211223223 has 8 divisors (see below), whose sum is σ = 1038701875200. Its totient is φ = 964045166040.

The previous prime is 1001211223217. The next prime is 1001211223237. The reversal of 1001211223223 is 3223221121001.

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

It is a cyclic number.

It is not a de Polignac number, because 1001211223223 - 2¹⁰ = 1001211222199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001211223195 and 1001211223204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001211223213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81142415 + ... + 81154752.

It is an arithmetic number, because the mean of its divisors is an integer number (129837734400).

Almost surely, 2^{1001211223223} is an apocalyptic number.

1001211223223 is a deficient number, since it is larger than the sum of its proper divisors (37490651977).

1001211223223 is a wasteful number, since it uses less digits than its factorization.

1001211223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162297397.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1001211223223 its reverse (3223221121001), we get a palindrome (4224432344224).

The spelling of 1001211223223 in words is "one trillion, one billion, two hundred eleven million, two hundred twenty-three thousand, two hundred twenty-three".