121226239 has 2 divisors, whose sum is σ = 121226240. Its totient is φ = 121226238.

The previous prime is 121226233. The next prime is 121226243. The reversal of 121226239 is 932622121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121226239 - 2¹⁷ = 121095167 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121226233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60613119 + 60613120.

It is an arithmetic number, because the mean of its divisors is an integer number (60613120).

Almost surely, 2^121226239 is an apocalyptic number.

121226239 is a deficient number, since it is larger than the sum of its proper divisors (1).

121226239 is an equidigital number, since it uses as much as digits as its factorization.

121226239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 121226239 is about 11010.2787884776. The cubic root of 121226239 is about 494.9168162773.

The spelling of 121226239 in words is "one hundred twenty-one million, two hundred twenty-six thousand, two hundred thirty-nine".