211112021233 has 2 divisors, whose sum is σ = 211112021234. Its totient is φ = 211112021232.

The previous prime is 211112021203. The next prime is 211112021261. The reversal of 211112021233 is 332120211112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200714752144 + 10397269089 = 448012^2 + 101967^2 .

It is a cyclic number.

It is not a de Polignac number, because 211112021233 - 2¹³ = 211112013041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211112021233.

It is not a weakly prime, because it can be changed into another prime (211112021203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556010616 + 105556010617.

It is an arithmetic number, because the mean of its divisors is an integer number (105556010617).

Almost surely, 2^211112021233 is an apocalyptic number.

It is an amenable number.

211112021233 is a deficient number, since it is larger than the sum of its proper divisors (1).

211112021233 is an equidigital number, since it uses as much as digits as its factorization.

211112021233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211112021233 its reverse (332120211112), we get a palindrome (543232232345).

The spelling of 211112021233 in words is "two hundred eleven billion, one hundred twelve million, twenty-one thousand, two hundred thirty-three".