165112101222331 has 8 divisors (see below), whose sum is σ = 176748012014400. Its totient is φ = 153770770450440.

The previous prime is 165112101222301. The next prime is 165112101222373. The reversal of 165112101222331 is 133222101211561.

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

It is not a de Polignac number, because 165112101222331 - 2⁹ = 165112101221819 is a prime.

It is a super-2 number, since 2×165112101222331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165112101222293 and 165112101222302.

It is not an unprimeable number, because it can be changed into a prime (165112101222301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73645003885 + ... + 73645006126.

It is an arithmetic number, because the mean of its divisors is an integer number (22093501501800).

Almost surely, 2^{165112101222331} is an apocalyptic number.

165112101222331 is a deficient number, since it is larger than the sum of its proper divisors (11635910792069).

165112101222331 is a wasteful number, since it uses less digits than its factorization.

165112101222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147290010089.

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 165112101222331 its reverse (133222101211561), we get a palindrome (298334202433892).

The spelling of 165112101222331 in words is "one hundred sixty-five trillion, one hundred twelve billion, one hundred one million, two hundred twenty-two thousand, three hundred thirty-one".