320102100221111 has 12 divisors (see below), whose sum is σ = 356204226162456. Its totient is φ = 285947285546160.

The previous prime is 320102100221087. The next prime is 320102100221117. The reversal of 320102100221111 is 111122001201023.

It is a happy number.

It is not a de Polignac number, because 320102100221111 - 2³⁸ = 319827222314167 is a prime.

It is a super-4 number, since 4×320102100221111⁴ (a number of 59 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320102100221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320102100221117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12811245821 + ... + 12811270806.

It is an arithmetic number, because the mean of its divisors is an integer number (29683685513538).

Almost surely, 2^{320102100221111} is an apocalyptic number.

320102100221111 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

320102100221111 is a deficient number, since it is larger than the sum of its proper divisors (36102125941345).

320102100221111 is a wasteful number, since it uses less digits than its factorization.

320102100221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25622516702 (or 25622516671 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 320102100221111 its reverse (111122001201023), we get a palindrome (431224101422134).

The spelling of 320102100221111 in words is "three hundred twenty trillion, one hundred two billion, one hundred million, two hundred twenty-one thousand, one hundred eleven".