20221210233 has 12 divisors (see below), whose sum is σ = 33381045568. Its totient is φ = 11554977240.

The previous prime is 20221210223. The next prime is 20221210241. The reversal of 20221210233 is 33201212202.

20221210233 is a `hidden beast` number, since 2 + 0 + 221 + 210 + 233 = 666.

It is not a de Polignac number, because 20221210233 - 2²⁰ = 20220161657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221210223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160485733 + ... + 160485858.

Almost surely, 2^20221210233 is an apocalyptic number.

It is an amenable number.

20221210233 is a deficient number, since it is larger than the sum of its proper divisors (13159835335).

20221210233 is a wasteful number, since it uses less digits than its factorization.

20221210233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320971604 (or 320971601 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20221210233 its reverse (33201212202), we get a palindrome (53422422435).

The spelling of 20221210233 in words is "twenty billion, two hundred twenty-one million, two hundred ten thousand, two hundred thirty-three".