121208229097 has 2 divisors, whose sum is σ = 121208229098. Its totient is φ = 121208229096.

The previous prime is 121208229011. The next prime is 121208229143. The reversal of 121208229097 is 790922802121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91584311641 + 29623917456 = 302629^2 + 172116^2 .

It is a cyclic number.

It is not a de Polignac number, because 121208229097 - 2⁷ = 121208228969 is a prime.

It is not a weakly prime, because it can be changed into another prime (121208229397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60604114548 + 60604114549.

It is an arithmetic number, because the mean of its divisors is an integer number (60604114549).

Almost surely, 2^121208229097 is an apocalyptic number.

It is an amenable number.

121208229097 is a deficient number, since it is larger than the sum of its proper divisors (1).

121208229097 is an equidigital number, since it uses as much as digits as its factorization.

121208229097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 121208229097 in words is "one hundred twenty-one billion, two hundred eight million, two hundred twenty-nine thousand, ninety-seven".