121205868560073 has 12 divisors (see below), whose sum is σ = 190991065609968. Its totient is φ = 73458102157560.

The previous prime is 121205868560017. The next prime is 121205868560099. The reversal of 121205868560073 is 370065868502121.

121205868560073 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 0 + 5 + 8 + 6 + 8 + 560 + 0 + 73 = 666.

It is not a de Polignac number, because 121205868560073 - 2⁹ = 121205868559561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121205868580073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 612150851215 + ... + 612150851412.

It is an arithmetic number, because the mean of its divisors is an integer number (15915922134164).

Almost surely, 2^{121205868560073} is an apocalyptic number.

It is an amenable number.

121205868560073 is a deficient number, since it is larger than the sum of its proper divisors (69785197049895).

121205868560073 is a wasteful number, since it uses less digits than its factorization.

121205868560073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224301702644 (or 1224301702641 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 121205868560073 in words is "one hundred twenty-one trillion, two hundred five billion, eight hundred sixty-eight million, five hundred sixty thousand, seventy-three".