21020200001167 has 2 divisors, whose sum is σ = 21020200001168. Its totient is φ = 21020200001166.

The previous prime is 21020200001089. The next prime is 21020200001173. The reversal of 21020200001167 is 76110000202012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21020200001167 - 2¹⁵ = 21020199968399 is a prime.

It is a super-2 number, since 2×21020200001167² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21020200001267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10510100000583 + 10510100000584.

It is an arithmetic number, because the mean of its divisors is an integer number (10510100000584).

Almost surely, 2^{21020200001167} is an apocalyptic number.

21020200001167 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020200001167 is an equidigital number, since it uses as much as digits as its factorization.

21020200001167 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 21020200001167 its reverse (76110000202012), we get a palindrome (97130200203179).

The spelling of 21020200001167 in words is "twenty-one trillion, twenty billion, two hundred million, one thousand, one hundred sixty-seven".