1123221232211 has 8 divisors (see below), whose sum is σ = 1210257198864. Its totient is φ = 1036275884640.

The previous prime is 1123221232157. The next prime is 1123221232219. The reversal of 1123221232211 is 1122321223211.

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-1123221232211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123221232219) 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, 22629020 + ... + 22678601.

It is an arithmetic number, because the mean of its divisors is an integer number (151282149858).

Almost surely, 2^{1123221232211} is an apocalyptic number.

1123221232211 is a deficient number, since it is larger than the sum of its proper divisors (87035966653).

1123221232211 is a wasteful number, since it uses less digits than its factorization.

1123221232211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45309541.

The product of its digits is 576, while the sum is 23.

Adding to 1123221232211 its reverse (1122321223211), we get a palindrome (2245542455422).

The spelling of 1123221232211 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, two hundred thirty-two thousand, two hundred eleven".