1232222321 has 16 divisors (see below), whose sum is σ = 1360843200. Its totient is φ = 1106424000.

The previous prime is 1232222311. The next prime is 1232222357.

It is a happy number.

1232222321 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1232222321 - 2²⁶ = 1165113457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232222293 and 1232222302.

It is not an unprimeable number, because it can be changed into a prime (1232222311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564410 + ... + 566588.

It is an arithmetic number, because the mean of its divisors is an integer number (85052700).

Almost surely, 2^1232222321 is an apocalyptic number.

1232222321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1232222321 is a deficient number, since it is larger than the sum of its proper divisors (128620879).

1232222321 is a wasteful number, since it uses less digits than its factorization.

1232222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800.

The product of its digits is 576, while the sum is 20.

The square root of 1232222321 is about 35103.0243853717. The cubic root of 1232222321 is about 1072.0861623331.

It can be divided in two parts, 12322 and 22321, that added together give a palindrome (34643).

The spelling of 1232222321 in words is "one billion, two hundred thirty-two million, two hundred twenty-two thousand, three hundred twenty-one".