2231220033 has 64 divisors (see below), whose sum is σ = 3829432320. Its totient is φ = 1257685056.

The previous prime is 2231219999. The next prime is 2231220037. The reversal of 2231220033 is 3300221322.

It is a happy number.

It is not a de Polignac number, because 2231220033 - 2²⁴ = 2214442817 is a prime.

It is a super-3 number, since 3×2231220033³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2231219988 and 2231220015.

It is not an unprimeable number, because it can be changed into a prime (2231220037) 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, 7038391 + ... + 7038707.

It is an arithmetic number, because the mean of its divisors is an integer number (59834880).

Almost surely, 2^2231220033 is an apocalyptic number.

It is an amenable number.

2231220033 is a deficient number, since it is larger than the sum of its proper divisors (1598212287).

2231220033 is a wasteful number, since it uses less digits than its factorization.

2231220033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2231220033 is about 47235.7918637975. The cubic root of 2231220033 is about 1306.7147705100.

Adding to 2231220033 its reverse (3300221322), we get a palindrome (5531441355).

The spelling of 2231220033 in words is "two billion, two hundred thirty-one million, two hundred twenty thousand, thirty-three".