1121232233021 has 8 divisors (see below), whose sum is σ = 1160006965920. Its totient is φ = 1082464937008.

The previous prime is 1121232232973. The next prime is 1121232233039. The reversal of 1121232233021 is 1203322321211.

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-1121232233021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121232235021) 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, 1551611 + ... + 2156376.

It is an arithmetic number, because the mean of its divisors is an integer number (145000870740).

Almost surely, 2^{1121232233021} is an apocalyptic number.

It is an amenable number.

1121232233021 is a deficient number, since it is larger than the sum of its proper divisors (38774732899).

1121232233021 is a wasteful number, since it uses less digits than its factorization.

1121232233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718443.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1121232233021 its reverse (1203322321211), we get a palindrome (2324554554232).

The spelling of 1121232233021 in words is "one trillion, one hundred twenty-one billion, two hundred thirty-two million, two hundred thirty-three thousand, twenty-one".