235221321164 has 12 divisors (see below), whose sum is σ = 411667632600. Its totient is φ = 117601997568.

The previous prime is 235221321109. The next prime is 235221321187. The reversal of 235221321164 is 461123122532.

It is a self number, because there is not a number n which added to its sum of digits gives 235221321164.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2104469 + ... + 2213420.

It is an arithmetic number, because the mean of its divisors is an integer number (34305636050).

Almost surely, 2^235221321164 is an apocalyptic number.

It is an amenable number.

235221321164 is a deficient number, since it is larger than the sum of its proper divisors (176446311436).

235221321164 is a wasteful number, since it uses less digits than its factorization.

235221321164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331512 (or 4331510 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

Adding to 235221321164 its reverse (461123122532), we get a palindrome (696344443696).

The spelling of 235221321164 in words is "two hundred thirty-five billion, two hundred twenty-one million, three hundred twenty-one thousand, one hundred sixty-four".