10221099786671 has 2 divisors, whose sum is σ = 10221099786672. Its totient is φ = 10221099786670.

The previous prime is 10221099786659. The next prime is 10221099786713. The reversal of 10221099786671 is 17668799012201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10221099786671 - 2⁶ = 10221099786607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10221099786671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221099786641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110549893335 + 5110549893336.

It is an arithmetic number, because the mean of its divisors is an integer number (5110549893336).

Almost surely, 2^{10221099786671} is an apocalyptic number.

10221099786671 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221099786671 is an equidigital number, since it uses as much as digits as its factorization.

10221099786671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 59.

The spelling of 10221099786671 in words is "ten trillion, two hundred twenty-one billion, ninety-nine million, seven hundred eighty-six thousand, six hundred seventy-one".