151165122201 has 24 divisors (see below), whose sum is σ = 223698665736. Its totient is φ = 98328971520.

The previous prime is 151165122139. The next prime is 151165122217. The reversal of 151165122201 is 102221561151.

It is a happy number.

151165122201 is a `hidden beast` number, since 1 + 5 + 1 + 1 + 651 + 2 + 2 + 2 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 30130016400 + 121035105801 = 173580^2 + 347901^2 .

It is not a de Polignac number, because 151165122201 - 2²¹ = 151163025049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151165122281) 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 23 ways as a sum of consecutive naturals, for example, 789100 + ... + 961773.

It is an arithmetic number, because the mean of its divisors is an integer number (9320777739).

Almost surely, 2^151165122201 is an apocalyptic number.

It is an amenable number.

151165122201 is a deficient number, since it is larger than the sum of its proper divisors (72533543535).

151165122201 is a wasteful number, since it uses less digits than its factorization.

151165122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751113 (or 1751110 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 151165122201 its reverse (102221561151), we get a palindrome (253386683352).

The spelling of 151165122201 in words is "one hundred fifty-one billion, one hundred sixty-five million, one hundred twenty-two thousand, two hundred one".