1230232221 has 12 divisors (see below), whose sum is σ = 1778006880. Its totient is φ = 819691080.

The previous prime is 1230232163. The next prime is 1230232249. The reversal of 1230232221 is 1222320321.

It is not a de Polignac number, because 1230232221 - 2⁷ = 1230232093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230232194 and 1230232203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230232261) 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 11 ways as a sum of consecutive naturals, for example, 21441 + ... + 54038.

It is an arithmetic number, because the mean of its divisors is an integer number (148167240).

Almost surely, 2^1230232221 is an apocalyptic number.

It is an amenable number.

1230232221 is a deficient number, since it is larger than the sum of its proper divisors (547774659).

1230232221 is a wasteful number, since it uses less digits than its factorization.

1230232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77296 (or 77293 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1230232221 is about 35074.6663704731. Note that the first 3 decimals coincide. The cubic root of 1230232221 is about 1071.5086939473.

Adding to 1230232221 its reverse (1222320321), we get a palindrome (2452552542).

The spelling of 1230232221 in words is "one billion, two hundred thirty million, two hundred thirty-two thousand, two hundred twenty-one".