211421024233 has 2 divisors, whose sum is σ = 211421024234. Its totient is φ = 211421024232.

The previous prime is 211421024207. The next prime is 211421024239. The reversal of 211421024233 is 332420124112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211279961104 + 141063129 = 459652^2 + 11877^2 .

It is a cyclic number.

It is not a de Polignac number, because 211421024233 - 2²⁹ = 210884153321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211421024198 and 211421024207.

It is not a weakly prime, because it can be changed into another prime (211421024239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105710512116 + 105710512117.

It is an arithmetic number, because the mean of its divisors is an integer number (105710512117).

Almost surely, 2^211421024233 is an apocalyptic number.

It is an amenable number.

211421024233 is a deficient number, since it is larger than the sum of its proper divisors (1).

211421024233 is an equidigital number, since it uses as much as digits as its factorization.

211421024233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211421024233 its reverse (332420124112), we get a palindrome (543841148345).

The spelling of 211421024233 in words is "two hundred eleven billion, four hundred twenty-one million, twenty-four thousand, two hundred thirty-three".