121225207 has 2 divisors, whose sum is σ = 121225208. Its totient is φ = 121225206.

The previous prime is 121225201. The next prime is 121225231. The reversal of 121225207 is 702522121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121225207 - 2³ = 121225199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121225201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60612603 + 60612604.

It is an arithmetic number, because the mean of its divisors is an integer number (60612604).

Almost surely, 2^121225207 is an apocalyptic number.

121225207 is a deficient number, since it is larger than the sum of its proper divisors (1).

121225207 is an equidigital number, since it uses as much as digits as its factorization.

121225207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 121225207 is about 11010.2319230795. The cubic root of 121225207 is about 494.9154118630.

Adding to 121225207 its reverse (702522121), we get a palindrome (823747328).

The spelling of 121225207 in words is "one hundred twenty-one million, two hundred twenty-five thousand, two hundred seven".