121365566422 has 8 divisors (see below), whose sum is σ = 192757076136. Its totient is φ = 57113207712.

The previous prime is 121365566417. The next prime is 121365566437. The reversal of 121365566422 is 224665563121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784787708 + ... + 1784787775.

It is an arithmetic number, because the mean of its divisors is an integer number (24094634517).

Almost surely, 2^121365566422 is an apocalyptic number.

121365566422 is a deficient number, since it is larger than the sum of its proper divisors (71391509714).

121365566422 is a wasteful number, since it uses less digits than its factorization.

121365566422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569575502.

The product of its digits is 518400, while the sum is 43.

The spelling of 121365566422 in words is "one hundred twenty-one billion, three hundred sixty-five million, five hundred sixty-six thousand, four hundred twenty-two".