121252207 has 2 divisors, whose sum is σ = 121252208. Its totient is φ = 121252206.

The previous prime is 121252189. The next prime is 121252213. The reversal of 121252207 is 702252121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121252207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121252247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60626103 + 60626104.

It is an arithmetic number, because the mean of its divisors is an integer number (60626104).

Almost surely, 2^121252207 is an apocalyptic number.

121252207 is a deficient number, since it is larger than the sum of its proper divisors (1).

121252207 is an equidigital number, since it uses as much as digits as its factorization.

121252207 is an evil number, because the sum of its binary digits is even.

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

The square root of 121252207 is about 11011.4579870242. The cubic root of 121252207 is about 494.9521526380.

The spelling of 121252207 in words is "one hundred twenty-one million, two hundred fifty-two thousand, two hundred seven".