121246222547 has 2 divisors, whose sum is σ = 121246222548. Its totient is φ = 121246222546.

The previous prime is 121246222459. The next prime is 121246222553. The reversal of 121246222547 is 745222642121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121246222547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121246222547.

It is not a weakly prime, because it can be changed into another prime (121246222567) 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, 60623111273 + 60623111274.

It is an arithmetic number, because the mean of its divisors is an integer number (60623111274).

Almost surely, 2^121246222547 is an apocalyptic number.

121246222547 is a deficient number, since it is larger than the sum of its proper divisors (1).

121246222547 is an equidigital number, since it uses as much as digits as its factorization.

121246222547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 38.

Adding to 121246222547 its reverse (745222642121), we get a palindrome (866468864668).

The spelling of 121246222547 in words is "one hundred twenty-one billion, two hundred forty-six million, two hundred twenty-two thousand, five hundred forty-seven".