121207 has 4 divisors (see below), whose sum is σ = 123256. Its totient is φ = 119160.

The previous prime is 121189. The next prime is 121229. The reversal of 121207 is 702121.

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 121207 - 2¹¹ = 119159 is a prime.

It is a super-2 number, since 2×121207² = 29382273698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 121207.

It is not an unprimeable number, because it can be changed into a prime (121267) 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, 933 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (30814).

2¹²¹²⁰⁷ is an apocalyptic number.

121207 is a deficient number, since it is larger than the sum of its proper divisors (2049).

121207 is an equidigital number, since it uses as much as digits as its factorization.

121207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 121207 is about 348.1479570527. The cubic root of 121207 is about 49.4890633254.

Adding to 121207 its reverse (702121), we get a palindrome (823328).

The spelling of 121207 in words is "one hundred twenty-one thousand, two hundred seven", and thus it is an iban number.