233101221 has 8 divisors (see below), whose sum is σ = 319201824. Its totient is φ = 151200720.

The previous prime is 233101207. The next prime is 233101223. The reversal of 233101221 is 122101332.

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

It is not a de Polignac number, because 233101221 - 2⁵ = 233101189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233101223) 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 7 ways as a sum of consecutive naturals, for example, 1049895 + ... + 1050116.

It is an arithmetic number, because the mean of its divisors is an integer number (39900228).

Almost surely, 2^233101221 is an apocalyptic number.

It is an amenable number.

233101221 is a deficient number, since it is larger than the sum of its proper divisors (86100603).

233101221 is a wasteful number, since it uses less digits than its factorization.

233101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100051.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 233101221 is about 15267.6527665519. The cubic root of 233101221 is about 615.4340435206.

Adding to 233101221 its reverse (122101332), we get a palindrome (355202553).

It can be divided in two parts, 23310 and 1221, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 233101221 in words is "two hundred thirty-three million, one hundred one thousand, two hundred twenty-one".