21202011020167 has 2 divisors, whose sum is σ = 21202011020168. Its totient is φ = 21202011020166.

The previous prime is 21202011020119. The next prime is 21202011020213. The reversal of 21202011020167 is 76102011020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21202011020167 - 2²⁷ = 21201876802439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21202011020867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601005510083 + 10601005510084.

It is an arithmetic number, because the mean of its divisors is an integer number (10601005510084).

Almost surely, 2^{21202011020167} is an apocalyptic number.

21202011020167 is a deficient number, since it is larger than the sum of its proper divisors (1).

21202011020167 is an equidigital number, since it uses as much as digits as its factorization.

21202011020167 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 21202011020167 its reverse (76102011020212), we get a palindrome (97304022040379).

The spelling of 21202011020167 in words is "twenty-one trillion, two hundred two billion, eleven million, twenty thousand, one hundred sixty-seven".