1221233040003 has 8 divisors (see below), whose sum is σ = 1641132064768. Its totient is φ = 807744687624.

The previous prime is 1221233039993. The next prime is 1221233040061. The reversal of 1221233040003 is 3000403321221.

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

It is not a de Polignac number, because 1221233040003 - 2⁹ = 1221233039491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221233040073) 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, 1602667651 + ... + 1602668412.

It is an arithmetic number, because the mean of its divisors is an integer number (205141508096).

Almost surely, 2^{1221233040003} is an apocalyptic number.

1221233040003 is a deficient number, since it is larger than the sum of its proper divisors (419899024765).

1221233040003 is a wasteful number, since it uses less digits than its factorization.

1221233040003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205336193.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1221233040003 its reverse (3000403321221), we get a palindrome (4221636361224).

The spelling of 1221233040003 in words is "one trillion, two hundred twenty-one billion, two hundred thirty-three million, forty thousand, three".