10221221100287 has 2 divisors, whose sum is σ = 10221221100288. Its totient is φ = 10221221100286.

The previous prime is 10221221100191. The next prime is 10221221100313. The reversal of 10221221100287 is 78200112212201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10221221100287 - 2⁸ = 10221221100031 is a prime.

It is a super-2 number, since 2×10221221100287² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221221100487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110610550143 + 5110610550144.

It is an arithmetic number, because the mean of its divisors is an integer number (5110610550144).

Almost surely, 2^{10221221100287} is an apocalyptic number.

10221221100287 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221221100287 is an equidigital number, since it uses as much as digits as its factorization.

10221221100287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 10221221100287 its reverse (78200112212201), we get a palindrome (88421333312488).

The spelling of 10221221100287 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred thousand, two hundred eighty-seven".