121224500497 has 2 divisors, whose sum is σ = 121224500498. Its totient is φ = 121224500496.

The previous prime is 121224500491. The next prime is 121224500513. The reversal of 121224500497 is 794005422121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96031192321 + 25193308176 = 309889^2 + 158724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121224500497 is a prime.

It is not a weakly prime, because it can be changed into another prime (121224500491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60612250248 + 60612250249.

It is an arithmetic number, because the mean of its divisors is an integer number (60612250249).

Almost surely, 2^121224500497 is an apocalyptic number.

It is an amenable number.

121224500497 is a deficient number, since it is larger than the sum of its proper divisors (1).

121224500497 is an equidigital number, since it uses as much as digits as its factorization.

121224500497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 121224500497 in words is "one hundred twenty-one billion, two hundred twenty-four million, five hundred thousand, four hundred ninety-seven".