233223224420421 has 6 divisors (see below), whose sum is σ = 336877990829510. Its totient is φ = 155482149613608.

The previous prime is 233223224420363. The next prime is 233223224420423. The reversal of 233223224420421 is 124024422322332.

233223224420421 is a `hidden beast` number, since 2 + 3 + 3 + 2 + 2 + 3 + 224 + 4 + 2 + 0 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 169436821904100 + 63786402516321 = 13016790^2 + 7986639^2 .

It is a de Polignac number, because none of the positive numbers 2^k-233223224420421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233223224420423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12956845801126 + ... + 12956845801143.

Almost surely, 2^{233223224420421} is an apocalyptic number.

It is an amenable number.

233223224420421 is a deficient number, since it is larger than the sum of its proper divisors (103654766409089).

233223224420421 is a wasteful number, since it uses less digits than its factorization.

233223224420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25913691602275 (or 25913691602272 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 233223224420421 its reverse (124024422322332), we get a palindrome (357247646742753).

The spelling of 233223224420421 in words is "two hundred thirty-three trillion, two hundred twenty-three billion, two hundred twenty-four million, four hundred twenty thousand, four hundred twenty-one".