10221000129097 has 2 divisors, whose sum is σ = 10221000129098. Its totient is φ = 10221000129096.

The previous prime is 10221000129083. The next prime is 10221000129133. The reversal of 10221000129097 is 79092100012201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9496899543616 + 724100585481 = 3081704^2 + 850941^2 .

It is an emirp because it is prime and its reverse (79092100012201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10221000129097 is a prime.

It is not a weakly prime, because it can be changed into another prime (10221000129037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110500064548 + 5110500064549.

It is an arithmetic number, because the mean of its divisors is an integer number (5110500064549).

Almost surely, 2^{10221000129097} is an apocalyptic number.

It is an amenable number.

10221000129097 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221000129097 is an equidigital number, since it uses as much as digits as its factorization.

10221000129097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 34.

The spelling of 10221000129097 in words is "ten trillion, two hundred twenty-one billion, one hundred twenty-nine thousand, ninety-seven".