212011323133 has 2 divisors, whose sum is σ = 212011323134. Its totient is φ = 212011323132.

The previous prime is 212011323131. The next prime is 212011323179. The reversal of 212011323133 is 331323110212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195432958084 + 16578365049 = 442078^2 + 128757^2 .

It is a cyclic number.

It is not a de Polignac number, because 212011323133 - 2¹ = 212011323131 is a prime.

It is a super-2 number, since 2×212011323133² (a number of 23 digits) contains 22 as substring.

Together with 212011323131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212011323131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005661566 + 106005661567.

It is an arithmetic number, because the mean of its divisors is an integer number (106005661567).

Almost surely, 2^212011323133 is an apocalyptic number.

It is an amenable number.

212011323133 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011323133 is an equidigital number, since it uses as much as digits as its factorization.

212011323133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212011323133 its reverse (331323110212), we get a palindrome (543334433345).

The spelling of 212011323133 in words is "two hundred twelve billion, eleven million, three hundred twenty-three thousand, one hundred thirty-three".