212012212133 has 2 divisors, whose sum is σ = 212012212134. Its totient is φ = 212012212132.

The previous prime is 212012212129. The next prime is 212012212151. The reversal of 212012212133 is 331212210212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200446930369 + 11565281764 = 447713^2 + 107542^2 .

It is a cyclic number.

It is not a de Polignac number, because 212012212133 - 2² = 212012212129 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212012212163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006106066 + 106006106067.

It is an arithmetic number, because the mean of its divisors is an integer number (106006106067).

Almost surely, 2^212012212133 is an apocalyptic number.

It is an amenable number.

212012212133 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012212133 is an equidigital number, since it uses as much as digits as its factorization.

212012212133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212012212133 its reverse (331212210212), we get a palindrome (543224422345).

The spelling of 212012212133 in words is "two hundred twelve billion, twelve million, two hundred twelve thousand, one hundred thirty-three".