1233430221 has 8 divisors (see below), whose sum is σ = 1645303744. Its totient is φ = 821921760.

The previous prime is 1233430193. The next prime is 1233430241. The reversal of 1233430221 is 1220343321.

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

It is not a de Polignac number, because 1233430221 - 2⁹ = 1233429709 is a prime.

It is a super-2 number, since 2×1233430221² = 3042700220152217682, which 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 (1233430241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83281 + ... + 96966.

It is an arithmetic number, because the mean of its divisors is an integer number (205662968).

Almost surely, 2^1233430221 is an apocalyptic number.

It is an amenable number.

1233430221 is a deficient number, since it is larger than the sum of its proper divisors (411873523).

1233430221 is a wasteful number, since it uses less digits than its factorization.

1233430221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182531.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1233430221 is about 35120.2252413050. The cubic root of 1233430221 is about 1072.4363561649.

Adding to 1233430221 its reverse (1220343321), we get a palindrome (2453773542).

The spelling of 1233430221 in words is "one billion, two hundred thirty-three million, four hundred thirty thousand, two hundred twenty-one".