211223100033 has 40 divisors (see below), whose sum is σ = 348572695680. Its totient is φ = 126393527520.

The previous prime is 211223100019. The next prime is 211223100091. The reversal of 211223100033 is 330001322112.

It is not a de Polignac number, because 211223100033 - 2⁵ = 211223100001 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211223099979 and 211223100015.

It is not an unprimeable number, because it can be changed into a prime (211223100013) 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 39 ways as a sum of consecutive naturals, for example, 1430010 + ... + 1570787.

It is an arithmetic number, because the mean of its divisors is an integer number (8714317392).

Almost surely, 2^211223100033 is an apocalyptic number.

It is an amenable number.

211223100033 is a deficient number, since it is larger than the sum of its proper divisors (137349595647).

211223100033 is a wasteful number, since it uses less digits than its factorization.

211223100033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000899 (or 3000890 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 211223100033 its reverse (330001322112), we get a palindrome (541224422145).

The spelling of 211223100033 in words is "two hundred eleven billion, two hundred twenty-three million, one hundred thousand, thirty-three".