121066012772473 has 4 divisors (see below), whose sum is σ = 121083834951028. Its totient is φ = 121048190593920.

The previous prime is 121066012772459. The next prime is 121066012772477. The reversal of 121066012772473 is 374277210660121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55019054055289 + 66046958717184 = 7417483^2 + 8126928^2 .

It is a cyclic number.

It is not a de Polignac number, because 121066012772473 - 2⁹ = 121066012771961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121066012772477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8911079088 + ... + 8911092673.

It is an arithmetic number, because the mean of its divisors is an integer number (30270958737757).

Almost surely, 2^{121066012772473} is an apocalyptic number.

It is an amenable number.

121066012772473 is a deficient number, since it is larger than the sum of its proper divisors (17822178555).

121066012772473 is an equidigital number, since it uses as much as digits as its factorization.

121066012772473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17822178554.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 121066012772473 in words is "one hundred twenty-one trillion, sixty-six billion, twelve million, seven hundred seventy-two thousand, four hundred seventy-three".