233001221221 has 8 divisors (see below), whose sum is σ = 237439550880. Its totient is φ = 228564450192.

The previous prime is 233001221209. The next prime is 233001221251. The reversal of 233001221221 is 122122100332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233001221221 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 (233001221251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85591 + ... + 687988.

It is an arithmetic number, because the mean of its divisors is an integer number (29679943860).

Almost surely, 2^233001221221 is an apocalyptic number.

It is an amenable number.

233001221221 is a deficient number, since it is larger than the sum of its proper divisors (4438329659).

233001221221 is an equidigital number, since it uses as much as digits as its factorization.

233001221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779315.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 233001221221 its reverse (122122100332), we get a palindrome (355123321553).

The spelling of 233001221221 in words is "two hundred thirty-three billion, one million, two hundred twenty-one thousand, two hundred twenty-one".