121226047 has 2 divisors, whose sum is σ = 121226048. Its totient is φ = 121226046.

The previous prime is 121226029. The next prime is 121226051. The reversal of 121226047 is 740622121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121226047 - 2⁷ = 121225919 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 (121226087) 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 as a sum of consecutive naturals, namely, 60613023 + 60613024.

It is an arithmetic number, because the mean of its divisors is an integer number (60613024).

Almost surely, 2^121226047 is an apocalyptic number.

121226047 is a deficient number, since it is larger than the sum of its proper divisors (1).

121226047 is an equidigital number, since it uses as much as digits as its factorization.

121226047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 121226047 is about 11010.2700693489. The cubic root of 121226047 is about 494.9165549916.

Adding to 121226047 its reverse (740622121), we get a palindrome (861848168).

The spelling of 121226047 in words is "one hundred twenty-one million, two hundred twenty-six thousand, forty-seven".