20012102167 has 2 divisors, whose sum is σ = 20012102168. Its totient is φ = 20012102166.

The previous prime is 20012102161. The next prime is 20012102249. The reversal of 20012102167 is 76120121002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012102167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012102161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006051083 + 10006051084.

It is an arithmetic number, because the mean of its divisors is an integer number (10006051084).

Almost surely, 2^20012102167 is an apocalyptic number.

20012102167 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012102167 is an equidigital number, since it uses as much as digits as its factorization.

20012102167 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 20012102167 its reverse (76120121002), we get a palindrome (96132223169).

The spelling of 20012102167 in words is "twenty billion, twelve million, one hundred two thousand, one hundred sixty-seven".