1221003123332 has 12 divisors (see below), whose sum is σ = 2162499508176. Its totient is φ = 603146121000.

The previous prime is 1221003123317. The next prime is 1221003123371. The reversal of 1221003123332 is 2333213001221.

It is a junction number, because it is equal to n+sod(n) for n = 1221003123298 and 1221003123307.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1838859794 + ... + 1838860457.

It is an arithmetic number, because the mean of its divisors is an integer number (180208292348).

Almost surely, 2^{1221003123332} is an apocalyptic number.

It is an amenable number.

1221003123332 is a deficient number, since it is larger than the sum of its proper divisors (941496384844).

1221003123332 is a wasteful number, since it uses less digits than its factorization.

1221003123332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677720338 (or 3677720336 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1221003123332 its reverse (2333213001221), we get a palindrome (3554216124553).

The spelling of 1221003123332 in words is "one trillion, two hundred twenty-one billion, three million, one hundred twenty-three thousand, three hundred thirty-two".