1223001001 has 8 divisors (see below), whose sum is σ = 1230456960. Its totient is φ = 1215565008.

The previous prime is 1223000981. The next prime is 1223001061. The reversal of 1223001001 is 1001003221.

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 1223001001 - 2²³ = 1214612393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223001061) 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, 128530 + ... + 137716.

It is an arithmetic number, because the mean of its divisors is an integer number (153807120).

Almost surely, 2^1223001001 is an apocalyptic number.

It is an amenable number.

1223001001 is a deficient number, since it is larger than the sum of its proper divisors (7455959).

1223001001 is an equidigital number, since it uses as much as digits as its factorization.

1223001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9983.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1223001001 is about 34971.4312117763. The cubic root of 1223001001 is about 1069.4051490259.

Adding to 1223001001 its reverse (1001003221), we get a palindrome (2224004222).

The spelling of 1223001001 in words is "one billion, two hundred twenty-three million, one thousand, one".