102102112122111 has 12 divisors (see below), whose sum is σ = 148457522852080. Its totient is φ = 67617292795200.

The previous prime is 102102112122103. The next prime is 102102112122161. The reversal of 102102112122111 is 111221211201201.

It is a happy number.

102102112122111 is a `hidden beast` number, since 1 + 0 + 210 + 211 + 21 + 221 + 1 + 1 = 666.

It is not a de Polignac number, because 102102112122111 - 2³ = 102102112122103 is a prime.

It is a super-2 number, since 2×102102112122111² (a number of 29 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 (102102112122161) 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, 37565161306 + ... + 37565164023.

Almost surely, 2^{102102112122111} is an apocalyptic number.

102102112122111 is a deficient number, since it is larger than the sum of its proper divisors (46355410729969).

102102112122111 is a wasteful number, since it uses less digits than its factorization.

102102112122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75130325486 (or 75130325483 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 102102112122111 its reverse (111221211201201), we get a palindrome (213323323323312).

The spelling of 102102112122111 in words is "one hundred two trillion, one hundred two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred eleven".