2033231221 has 16 divisors (see below), whose sum is σ = 2385585664. Its totient is φ = 1696618224.

The previous prime is 2033231201. The next prime is 2033231243. The reversal of 2033231221 is 1221323302.

It is not a de Polignac number, because 2033231221 - 2¹¹ = 2033229173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2033231201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81406 + ... + 103408.

It is an arithmetic number, because the mean of its divisors is an integer number (149099104).

Almost surely, 2^2033231221 is an apocalyptic number.

It is an amenable number.

2033231221 is a deficient number, since it is larger than the sum of its proper divisors (352354443).

2033231221 is a wasteful number, since it uses less digits than its factorization.

2033231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22360.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2033231221 is about 45091.3652598810. The cubic root of 2033231221 is about 1266.8608733235.

Adding to 2033231221 its reverse (1221323302), we get a palindrome (3254554523).

The spelling of 2033231221 in words is "two billion, thirty-three million, two hundred thirty-one thousand, two hundred twenty-one".