21122503403167 has 2 divisors, whose sum is σ = 21122503403168. Its totient is φ = 21122503403166.

The previous prime is 21122503403159. The next prime is 21122503403273. The reversal of 21122503403167 is 76130430522112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21122503403167 - 2³ = 21122503403159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21122503403107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10561251701583 + 10561251701584.

It is an arithmetic number, because the mean of its divisors is an integer number (10561251701584).

Almost surely, 2^{21122503403167} is an apocalyptic number.

21122503403167 is a deficient number, since it is larger than the sum of its proper divisors (1).

21122503403167 is an equidigital number, since it uses as much as digits as its factorization.

21122503403167 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 21122503403167 its reverse (76130430522112), we get a palindrome (97252933925279).

The spelling of 21122503403167 in words is "twenty-one trillion, one hundred twenty-two billion, five hundred three million, four hundred three thousand, one hundred sixty-seven".