21214036536167 has 2 divisors, whose sum is σ = 21214036536168. Its totient is φ = 21214036536166.

The previous prime is 21214036536131. The next prime is 21214036536179. The reversal of 21214036536167 is 76163563041212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21214036536167 - 2²² = 21214032341863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21214036596167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607018268083 + 10607018268084.

It is an arithmetic number, because the mean of its divisors is an integer number (10607018268084).

Almost surely, 2^{21214036536167} is an apocalyptic number.

21214036536167 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214036536167 is an equidigital number, since it uses as much as digits as its factorization.

21214036536167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

Adding to 21214036536167 its reverse (76163563041212), we get a palindrome (97377599577379).

The spelling of 21214036536167 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred thirty-six thousand, one hundred sixty-seven".