1230033221 has 4 divisors (see below), whose sum is σ = 1269711744. Its totient is φ = 1190354700.

The previous prime is 1230033209. The next prime is 1230033257. The reversal of 1230033221 is 1223300321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1230033221 - 2¹⁰ = 1230032197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230033221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230033271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19839215 + ... + 19839276.

It is an arithmetic number, because the mean of its divisors is an integer number (317427936).

Almost surely, 2^1230033221 is an apocalyptic number.

It is an amenable number.

1230033221 is a deficient number, since it is larger than the sum of its proper divisors (39678523).

1230033221 is an equidigital number, since it uses as much as digits as its factorization.

1230033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39678522.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1230033221 is about 35071.8294504293. The cubic root of 1230033221 is about 1071.4509157694.

Adding to 1230033221 its reverse (1223300321), we get a palindrome (2453333542).

The spelling of 1230033221 in words is "one billion, two hundred thirty million, thirty-three thousand, two hundred twenty-one".