20012212067 has 2 divisors, whose sum is σ = 20012212068. Its totient is φ = 20012212066.

The previous prime is 20012212009. The next prime is 20012212069. The reversal of 20012212067 is 76021221002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012212067 - 2³⁴ = 2832342883 is a prime.

Together with 20012212069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20012212069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006106033 + 10006106034.

It is an arithmetic number, because the mean of its divisors is an integer number (10006106034).

Almost surely, 2^20012212067 is an apocalyptic number.

20012212067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012212067 is an equidigital number, since it uses as much as digits as its factorization.

20012212067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

Adding to 20012212067 its reverse (76021221002), we get a palindrome (96033433069).

The spelling of 20012212067 in words is "twenty billion, twelve million, two hundred twelve thousand, sixty-seven".