121200097 has 2 divisors, whose sum is σ = 121200098. Its totient is φ = 121200096.

The previous prime is 121200091. The next prime is 121200109. The reversal of 121200097 is 790002121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115799121 + 5400976 = 10761^2 + 2324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121200097 is a prime.

It is a super-3 number, since 3×121200097³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121200091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600048 + 60600049.

It is an arithmetic number, because the mean of its divisors is an integer number (60600049).

Almost surely, 2^121200097 is an apocalyptic number.

It is an amenable number.

121200097 is a deficient number, since it is larger than the sum of its proper divisors (1).

121200097 is an equidigital number, since it uses as much as digits as its factorization.

121200097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 121200097 is about 11009.0915610690. The cubic root of 121200097 is about 494.8812380460.

The spelling of 121200097 in words is "one hundred twenty-one million, two hundred thousand, ninety-seven".