1223330320421 has 8 divisors (see below), whose sum is σ = 1370610875424. Its totient is φ = 1082061216720.

The previous prime is 1223330320417. The next prime is 1223330320463. The reversal of 1223330320421 is 1240230333221.

It is a happy number.

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

It is not a de Polignac number, because 1223330320421 - 2² = 1223330320417 is a prime.

It is a super-2 number, since 2×1223330320421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223330320621) 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, 1502862395 + ... + 1502863208.

It is an arithmetic number, because the mean of its divisors is an integer number (171326359428).

Almost surely, 2^{1223330320421} is an apocalyptic number.

1223330320421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223330320421 is a deficient number, since it is larger than the sum of its proper divisors (147280555003).

1223330320421 is a wasteful number, since it uses less digits than its factorization.

1223330320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005725651.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 1223330320421 its reverse (1240230333221), we get a palindrome (2463560653642).

The spelling of 1223330320421 in words is "one trillion, two hundred twenty-three billion, three hundred thirty million, three hundred twenty thousand, four hundred twenty-one".