233340232221 has 64 divisors (see below), whose sum is σ = 369505382400. Its totient is φ = 145023084288.

The previous prime is 233340232199. The next prime is 233340232243. The reversal of 233340232221 is 122232043332.

233340232221 is a `hidden beast` number, since 2 + 3 + 3 + 3 + 402 + 32 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (233340232199) and next prime (233340232243).

It is not a de Polignac number, because 233340232221 - 2⁵ = 233340232189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233340232261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22963740 + ... + 22973898.

It is an arithmetic number, because the mean of its divisors is an integer number (5773521600).

Almost surely, 2^233340232221 is an apocalyptic number.

It is an amenable number.

233340232221 is a deficient number, since it is larger than the sum of its proper divisors (136165150179).

233340232221 is a wasteful number, since it uses less digits than its factorization.

233340232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655 (or 10649 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 233340232221 its reverse (122232043332), we get a palindrome (355572275553).

The spelling of 233340232221 in words is "two hundred thirty-three billion, three hundred forty million, two hundred thirty-two thousand, two hundred twenty-one".