1232223421 has 8 divisors (see below), whose sum is σ = 1447647264. Its totient is φ = 1034033520.

The previous prime is 1232223403. The next prime is 1232223431. The reversal of 1232223421 is 1243222321.

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

It is not a de Polignac number, because 1232223421 - 2¹⁷ = 1232092349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232223392 and 1232223401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232223431) 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, 4308331 + ... + 4308616.

It is an arithmetic number, because the mean of its divisors is an integer number (180955908).

Almost surely, 2^1232223421 is an apocalyptic number.

1232223421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1232223421 is a deficient number, since it is larger than the sum of its proper divisors (215423843).

1232223421 is a wasteful number, since it uses less digits than its factorization.

1232223421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616971.

The product of its digits is 1152, while the sum is 22.

The square root of 1232223421 is about 35103.0400535338. The cubic root of 1232223421 is about 1072.0864813487.

Adding to 1232223421 its reverse (1243222321), we get a palindrome (2475445742).

The spelling of 1232223421 in words is "one billion, two hundred thirty-two million, two hundred twenty-three thousand, four hundred twenty-one".