102539222181 has 48 divisors (see below), whose sum is σ = 163640368320. Its totient is φ = 61355439360.

The previous prime is 102539222171. The next prime is 102539222207. The reversal of 102539222181 is 181222935201.

102539222181 is a `hidden beast` number, since 1 + 0 + 2 + 539 + 22 + 21 + 81 = 666.

It is not a de Polignac number, because 102539222181 - 2⁹ = 102539221669 is a prime.

It is a super-2 number, since 2×102539222181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102539222101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3037065 + ... + 3070641.

It is an arithmetic number, because the mean of its divisors is an integer number (3409174340).

Almost surely, 2^102539222181 is an apocalyptic number.

102539222181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102539222181 is a deficient number, since it is larger than the sum of its proper divisors (61101146139).

102539222181 is a wasteful number, since it uses less digits than its factorization.

102539222181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33986 (or 33983 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 102539222181 in words is "one hundred two billion, five hundred thirty-nine million, two hundred twenty-two thousand, one hundred eighty-one".