102102012120 has 32 divisors (see below), whose sum is σ = 306306036720. Its totient is φ = 27227203200.

The previous prime is 102102012079. The next prime is 102102012149. The reversal of 102102012120 is 21210201201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 102102012096 and 102102012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425424931 + ... + 425425170.

Almost surely, 2^102102012120 is an apocalyptic number.

102102012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102012120 is an abundant number, since it is smaller than the sum of its proper divisors (204204024600).

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

102102012120 is a wasteful number, since it uses less digits than its factorization.

102102012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850850115 (or 850850111 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102102012120 its reverse (21210201201), we get a palindrome (123312213321).

The spelling of 102102012120 in words is "one hundred two billion, one hundred two million, twelve thousand, one hundred twenty".