201224020331 has 4 divisors (see below), whose sum is σ = 201572762712. Its totient is φ = 200875277952.

The previous prime is 201224020307. The next prime is 201224020357. The reversal of 201224020331 is 133020422102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201224020331 - 2⁶ = 201224020267 is a prime.

It is a super-2 number, since 2×201224020331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201224080331) 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, 174370325 + ... + 174371478.

It is an arithmetic number, because the mean of its divisors is an integer number (50393190678).

Almost surely, 2^201224020331 is an apocalyptic number.

201224020331 is a deficient number, since it is larger than the sum of its proper divisors (348742381).

201224020331 is an equidigital number, since it uses as much as digits as its factorization.

201224020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348742380.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201224020331 its reverse (133020422102), we get a palindrome (334244442433).

The spelling of 201224020331 in words is "two hundred one billion, two hundred twenty-four million, twenty thousand, three hundred thirty-one".