102111122120 has 32 divisors (see below), whose sum is σ = 262571457600. Its totient is φ = 35009527488.

The previous prime is 102111122119. The next prime is 102111122123. The reversal of 102111122120 is 21221111201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 102111122095 and 102111122104.

It is not an unprimeable number, because it can be changed into a prime (102111122123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182341010 + ... + 182341569.

It is an arithmetic number, because the mean of its divisors is an integer number (8205358050).

Almost surely, 2^102111122120 is an apocalyptic number.

102111122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102111122120 is an abundant number, since it is smaller than the sum of its proper divisors (160460335480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102111122120 is a wasteful number, since it uses less digits than its factorization.

102111122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364682597 (or 364682593 counting only the distinct ones).

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

Adding to 102111122120 its reverse (21221111201), we get a palindrome (123332233321).

The spelling of 102111122120 in words is "one hundred two billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twenty".