20211210233 has 8 divisors (see below), whose sum is σ = 22199956800. Its totient is φ = 18314963568.

The previous prime is 20211210221. The next prime is 20211210247. The reversal of 20211210233 is 33201211202.

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

It is a cyclic number.

It is not a de Polignac number, because 20211210233 - 2²⁸ = 19942774777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20211210433) 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, 23124518 + ... + 23125391.

It is an arithmetic number, because the mean of its divisors is an integer number (2774994600).

Almost surely, 2^20211210233 is an apocalyptic number.

20211210233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20211210233 is a deficient number, since it is larger than the sum of its proper divisors (1988746567).

20211210233 is a wasteful number, since it uses less digits than its factorization.

20211210233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46249951.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20211210233 its reverse (33201211202), we get a palindrome (53412421435).

The spelling of 20211210233 in words is "twenty billion, two hundred eleven million, two hundred ten thousand, two hundred thirty-three".