121001207 has 4 divisors (see below), whose sum is σ = 122176080. Its totient is φ = 119826336.

The previous prime is 121001203. The next prime is 121001213. The reversal of 121001207 is 702100121.

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

It is a cyclic number.

It is not a de Polignac number, because 121001207 - 2² = 121001203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121001191 and 121001200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121001203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587282 + ... + 587487.

It is an arithmetic number, because the mean of its divisors is an integer number (30544020).

Almost surely, 2^121001207 is an apocalyptic number.

121001207 is a deficient number, since it is larger than the sum of its proper divisors (1174873).

121001207 is a wasteful number, since it uses less digits than its factorization.

121001207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174872.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 121001207 is about 11000.0548634995. The cubic root of 121001207 is about 494.6103889275.

Adding to 121001207 its reverse (702100121), we get a palindrome (823101328).

The spelling of 121001207 in words is "one hundred twenty-one million, one thousand, two hundred seven".