121522541347 has 2 divisors, whose sum is σ = 121522541348. Its totient is φ = 121522541346.

The previous prime is 121522541339. The next prime is 121522541419. The reversal of 121522541347 is 743145225121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121522541347 - 2³ = 121522541339 is a prime.

It is not a weakly prime, because it can be changed into another prime (121522511347) 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, 60761270673 + 60761270674.

It is an arithmetic number, because the mean of its divisors is an integer number (60761270674).

Almost surely, 2^121522541347 is an apocalyptic number.

121522541347 is a deficient number, since it is larger than the sum of its proper divisors (1).

121522541347 is an equidigital number, since it uses as much as digits as its factorization.

121522541347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 37.

Adding to 121522541347 its reverse (743145225121), we get a palindrome (864667766468).

The spelling of 121522541347 in words is "one hundred twenty-one billion, five hundred twenty-two million, five hundred forty-one thousand, three hundred forty-seven".