233221464135 has 80 divisors (see below), whose sum is σ = 482905776672. Its totient is φ = 106425446400.

The previous prime is 233221464059. The next prime is 233221464139. The reversal of 233221464135 is 531464122332.

233221464135 is a `hidden beast` number, since 2 + 3 + 3 + 2 + 2 + 1 + 4 + 641 + 3 + 5 = 666.

It is not a de Polignac number, because 233221464135 - 2⁹ = 233221463623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233221464135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233221464139) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1463986 + ... + 1615455.

Almost surely, 2^233221464135 is an apocalyptic number.

233221464135 is an abundant number, since it is smaller than the sum of its proper divisors (249684312537).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

233221464135 is a wasteful number, since it uses less digits than its factorization.

233221464135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079486 (or 3079477 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

Adding to 233221464135 its reverse (531464122332), we get a palindrome (764685586467).

The spelling of 233221464135 in words is "two hundred thirty-three billion, two hundred twenty-one million, four hundred sixty-four thousand, one hundred thirty-five".