211121010233 has 4 divisors (see below), whose sum is σ = 241281154560. Its totient is φ = 180960865908.

The previous prime is 211121010227. The next prime is 211121010241. The reversal of 211121010233 is 332010121112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211121010233 - 2²⁶ = 211053901369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211121010263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15080072153 + ... + 15080072166.

It is an arithmetic number, because the mean of its divisors is an integer number (60320288640).

Almost surely, 2^211121010233 is an apocalyptic number.

It is an amenable number.

211121010233 is a deficient number, since it is larger than the sum of its proper divisors (30160144327).

211121010233 is an equidigital number, since it uses as much as digits as its factorization.

211121010233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30160144326.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211121010233 its reverse (332010121112), we get a palindrome (543131131345).

The spelling of 211121010233 in words is "two hundred eleven billion, one hundred twenty-one million, ten thousand, two hundred thirty-three".