201230332221 has 16 divisors (see below), whose sum is σ = 269418623040. Its totient is φ = 133597968000.

The previous prime is 201230332169. The next prime is 201230332229. The reversal of 201230332221 is 122233032102.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-201230332221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201230332229) 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, 5820775 + ... + 5855243.

It is an arithmetic number, because the mean of its divisors is an integer number (16838663940).

Almost surely, 2^201230332221 is an apocalyptic number.

It is an amenable number.

201230332221 is a deficient number, since it is larger than the sum of its proper divisors (68188290819).

201230332221 is a wasteful number, since it uses less digits than its factorization.

201230332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42476.

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

Adding to 201230332221 its reverse (122233032102), we get a palindrome (323463364323).

The spelling of 201230332221 in words is "two hundred one billion, two hundred thirty million, three hundred thirty-two thousand, two hundred twenty-one".