121201097 has 4 divisors (see below), whose sum is σ = 122861460. Its totient is φ = 119540736.

The previous prime is 121201051. The next prime is 121201117. The reversal of 121201097 is 790102121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83978896 + 37222201 = 9164^2 + 6101^2 .

It is a cyclic number.

It is not a de Polignac number, because 121201097 - 2⁸ = 121200841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121201037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830072 + ... + 830217.

It is an arithmetic number, because the mean of its divisors is an integer number (30715365).

Almost surely, 2^121201097 is an apocalyptic number.

It is an amenable number.

121201097 is a deficient number, since it is larger than the sum of its proper divisors (1660363).

121201097 is an equidigital number, since it uses as much as digits as its factorization.

121201097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660362.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 121201097 is about 11009.1369779833. The cubic root of 121201097 is about 494.8825991006.

The spelling of 121201097 in words is "one hundred twenty-one million, two hundred one thousand, ninety-seven".