105221912445563 has 2 divisors, whose sum is σ = 105221912445564. Its totient is φ = 105221912445562.

The previous prime is 105221912445557. The next prime is 105221912445593. The reversal of 105221912445563 is 365544219122501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105221912445563 - 2⁴ = 105221912445547 is a prime.

It is a super-2 number, since 2×105221912445563² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105221912445593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52610956222781 + 52610956222782.

It is an arithmetic number, because the mean of its divisors is an integer number (52610956222782).

Almost surely, 2^{105221912445563} is an apocalyptic number.

105221912445563 is a deficient number, since it is larger than the sum of its proper divisors (1).

105221912445563 is an equidigital number, since it uses as much as digits as its factorization.

105221912445563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592000, while the sum is 50.

The spelling of 105221912445563 in words is "one hundred five trillion, two hundred twenty-one billion, nine hundred twelve million, four hundred forty-five thousand, five hundred sixty-three".