20012201021167 has 2 divisors, whose sum is σ = 20012201021168. Its totient is φ = 20012201021166.

The previous prime is 20012201021053. The next prime is 20012201021201. The reversal of 20012201021167 is 76112010221002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012201021167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012201021767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006100510583 + 10006100510584.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100510584).

Almost surely, 2^{20012201021167} is an apocalyptic number.

20012201021167 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012201021167 is an equidigital number, since it uses as much as digits as its factorization.

20012201021167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 20012201021167 its reverse (76112010221002), we get a palindrome (96124211242169).

The spelling of 20012201021167 in words is "twenty trillion, twelve billion, two hundred one million, twenty-one thousand, one hundred sixty-seven".