212133031469 has 2 divisors, whose sum is σ = 212133031470. Its totient is φ = 212133031468.

The previous prime is 212133031441. The next prime is 212133031471. The reversal of 212133031469 is 964130331212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210715885444 + 1417146025 = 459038^2 + 37645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212133031469 is a prime.

It is a super-2 number, since 2×212133031469² (a number of 23 digits) contains 22 as substring.

Together with 212133031471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212133031769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106066515734 + 106066515735.

It is an arithmetic number, because the mean of its divisors is an integer number (106066515735).

Almost surely, 2^212133031469 is an apocalyptic number.

It is an amenable number.

212133031469 is a deficient number, since it is larger than the sum of its proper divisors (1).

212133031469 is an equidigital number, since it uses as much as digits as its factorization.

212133031469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 212133031469 in words is "two hundred twelve billion, one hundred thirty-three million, thirty-one thousand, four hundred sixty-nine".