1123221321001 has 8 divisors (see below), whose sum is σ = 1209994170560. Its totient is φ = 1036501501392.

The previous prime is 1123221320983. The next prime is 1123221321041. The reversal of 1123221321001 is 1001231223211.

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 1123221321001 - 2⁹ = 1123221320489 is a prime.

It is a super-2 number, since 2×1123221321001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1123221321001.

It is not an unprimeable number, because it can be changed into a prime (1123221321041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13213485 + ... + 13298218.

It is an arithmetic number, because the mean of its divisors is an integer number (151249271320).

Almost surely, 2^{1123221321001} is an apocalyptic number.

It is an amenable number.

1123221321001 is a deficient number, since it is larger than the sum of its proper divisors (86772849559).

1123221321001 is a wasteful number, since it uses less digits than its factorization.

1123221321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26514975.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1123221321001 its reverse (1001231223211), we get a palindrome (2124452544212).

The spelling of 1123221321001 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, three hundred twenty-one thousand, one".