121501150165 has 8 divisors (see below), whose sum is σ = 145803289248. Its totient is φ = 97199647440.

The previous prime is 121501150139. The next prime is 121501150193. The reversal of 121501150165 is 561051105121.

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

It is not a de Polignac number, because 121501150165 - 2¹³ = 121501141973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541234 + ... + 732076.

It is an arithmetic number, because the mean of its divisors is an integer number (18225411156).

Almost surely, 2^121501150165 is an apocalyptic number.

It is an amenable number.

121501150165 is a deficient number, since it is larger than the sum of its proper divisors (24302139083).

121501150165 is a wasteful number, since it uses less digits than its factorization.

121501150165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318179.

The product of its (nonzero) digits is 1500, while the sum is 28.

Adding to 121501150165 its reverse (561051105121), we get a palindrome (682552255286).

The spelling of 121501150165 in words is "one hundred twenty-one billion, five hundred one million, one hundred fifty thousand, one hundred sixty-five".