102111122012 has 12 divisors (see below), whose sum is σ = 178717897176. Its totient is φ = 51048865680.

The previous prime is 102111121951. The next prime is 102111122063. The reversal of 102111122012 is 210221111201.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1639439 + ... + 1700582.

It is an arithmetic number, because the mean of its divisors is an integer number (14893158098).

Almost surely, 2^102111122012 is an apocalyptic number.

It is an amenable number.

102111122012 is a deficient number, since it is larger than the sum of its proper divisors (76606775164).

102111122012 is a wasteful number, since it uses less digits than its factorization.

102111122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347668 (or 3347666 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102111122012 its reverse (210221111201), we get a palindrome (312332233213).

The spelling of 102111122012 in words is "one hundred two billion, one hundred eleven million, one hundred twenty-two thousand, twelve".