1232201221 has 8 divisors (see below), whose sum is σ = 1253738304. Its totient is φ = 1210756800.

The previous prime is 1232201219. The next prime is 1232201227. The reversal of 1232201221 is 1221022321.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1232201221 - 2¹ = 1232201219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1232201195 and 1232201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232201227) 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, 3936 + ... + 49798.

It is an arithmetic number, because the mean of its divisors is an integer number (156717288).

Almost surely, 2^1232201221 is an apocalyptic number.

It is an amenable number.

1232201221 is a deficient number, since it is larger than the sum of its proper divisors (21537083).

1232201221 is an equidigital number, since it uses as much as digits as its factorization.

1232201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46331.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1232201221 is about 35102.7238401808. The cubic root of 1232201221 is about 1072.0800429972.

Adding to 1232201221 its reverse (1221022321), we get a palindrome (2453223542).

The spelling of 1232201221 in words is "one billion, two hundred thirty-two million, two hundred one thousand, two hundred twenty-one".