121966970472805 has 8 divisors (see below), whose sum is σ = 147118708426392. Its totient is φ = 97068013805568.

The previous prime is 121966970472803. The next prime is 121966970472829. The reversal of 121966970472805 is 508274079669121.

It can be written as a sum of positive squares in 4 ways, for example, as 188285698561 + 121778684774244 = 433919^2 + 11035338^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121966970472805 - 2¹ = 121966970472803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121966970472803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63195320524 + ... + 63195322453.

It is an arithmetic number, because the mean of its divisors is an integer number (18389838553299).

Almost surely, 2^{121966970472805} is an apocalyptic number.

It is an amenable number.

121966970472805 is a deficient number, since it is larger than the sum of its proper divisors (25151737953587).

121966970472805 is a wasteful number, since it uses less digits than its factorization.

121966970472805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126390643175.

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 121966970472805 in words is "one hundred twenty-one trillion, nine hundred sixty-six billion, nine hundred seventy million, four hundred seventy-two thousand, eight hundred five".