1217165006101 has 4 divisors (see below), whose sum is σ = 1327816370304. Its totient is φ = 1106513641900.

The previous prime is 1217165006081. The next prime is 1217165006149. The reversal of 1217165006101 is 1016005617121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1217165006101 - 2¹¹ = 1217165004053 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 (1217165000101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55325682085 + ... + 55325682106.

It is an arithmetic number, because the mean of its divisors is an integer number (331954092576).

Almost surely, 2^{1217165006101} is an apocalyptic number.

1217165006101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1217165006101 is a deficient number, since it is larger than the sum of its proper divisors (110651364203).

1217165006101 is a wasteful number, since it uses less digits than its factorization.

1217165006101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110651364202.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 1217165006101 in words is "one trillion, two hundred seventeen billion, one hundred sixty-five million, six thousand, one hundred one".