21611172161119 has 8 divisors (see below), whose sum is σ = 21754192332800. Its totient is φ = 21468496203000.

The previous prime is 21611172161113. The next prime is 21611172161153. The reversal of 21611172161119 is 91116127111612.

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

It is a cyclic number.

It is not a de Polignac number, because 21611172161119 - 2⁹ = 21611172160607 is a prime.

It is a super-2 number, since 2×21611172161119² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21611172161113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85927407 + ... + 86178544.

It is an arithmetic number, because the mean of its divisors is an integer number (2719274041600).

Almost surely, 2^{21611172161119} is an apocalyptic number.

21611172161119 is a deficient number, since it is larger than the sum of its proper divisors (143020171681).

21611172161119 is a wasteful number, since it uses less digits than its factorization.

21611172161119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172106781.

The product of its digits is 9072, while the sum is 40.

The spelling of 21611172161119 in words is "twenty-one trillion, six hundred eleven billion, one hundred seventy-two million, one hundred sixty-one thousand, one hundred nineteen".