103221021097 has 2 divisors, whose sum is σ = 103221021098. Its totient is φ = 103221021096.

The previous prime is 103221021089. The next prime is 103221021217. The reversal of 103221021097 is 790120122301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77140063081 + 26080958016 = 277741^2 + 161496^2 .

It is a cyclic number.

It is not a de Polignac number, because 103221021097 - 2³ = 103221021089 is a prime.

It is not a weakly prime, because it can be changed into another prime (103221021077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51610510548 + 51610510549.

It is an arithmetic number, because the mean of its divisors is an integer number (51610510549).

Almost surely, 2^103221021097 is an apocalyptic number.

It is an amenable number.

103221021097 is a deficient number, since it is larger than the sum of its proper divisors (1).

103221021097 is an equidigital number, since it uses as much as digits as its factorization.

103221021097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 103221021097 its reverse (790120122301), we get a palindrome (893341143398).

The spelling of 103221021097 in words is "one hundred three billion, two hundred twenty-one million, twenty-one thousand, ninety-seven".