221210101012097 has 2 divisors, whose sum is σ = 221210101012098. Its totient is φ = 221210101012096.

The previous prime is 221210101012027. The next prime is 221210101012177. The reversal of 221210101012097 is 790210101012122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208825360525681 + 12384740486416 = 14450791^2 + 3519196^2 .

It is a cyclic number.

It is not a de Polignac number, because 221210101012097 - 2¹⁰ = 221210101011073 is a prime.

It is not a weakly prime, because it can be changed into another prime (221210101012007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110605050506048 + 110605050506049.

It is an arithmetic number, because the mean of its divisors is an integer number (110605050506049).

Almost surely, 2^{221210101012097} is an apocalyptic number.

It is an amenable number.

221210101012097 is a deficient number, since it is larger than the sum of its proper divisors (1).

221210101012097 is an equidigital number, since it uses as much as digits as its factorization.

221210101012097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

The spelling of 221210101012097 in words is "two hundred twenty-one trillion, two hundred ten billion, one hundred one million, twelve thousand, ninety-seven".