20101212067 has 2 divisors, whose sum is σ = 20101212068. Its totient is φ = 20101212066.

The previous prime is 20101212059. The next prime is 20101212071. The reversal of 20101212067 is 76021210102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20101212067 - 2³ = 20101212059 is a prime.

It is not a weakly prime, because it can be changed into another prime (20101212167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050606033 + 10050606034.

It is an arithmetic number, because the mean of its divisors is an integer number (10050606034).

Almost surely, 2^20101212067 is an apocalyptic number.

20101212067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101212067 is an equidigital number, since it uses as much as digits as its factorization.

20101212067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 20101212067 its reverse (76021210102), we get a palindrome (96122422169).

The spelling of 20101212067 in words is "twenty billion, one hundred one million, two hundred twelve thousand, sixty-seven".