102001110120120 has 32 divisors (see below), whose sum is σ = 306003330360720. Its totient is φ = 27200296032000.

The previous prime is 102001110120089. The next prime is 102001110120121. The reversal of 102001110120120 is 21021011100201.

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 = 102001110120096 and 102001110120105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001110120121) 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, 425004625381 + ... + 425004625620.

Almost surely, 2^{102001110120120} is an apocalyptic number.

102001110120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102001110120120 is an abundant number, since it is smaller than the sum of its proper divisors (204002220240600).

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

102001110120120 is a wasteful number, since it uses less digits than its factorization.

102001110120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850009251015 (or 850009251011 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102001110120120 its reverse (21021011100201), we get a palindrome (123022121220321).

The spelling of 102001110120120 in words is "one hundred two trillion, one billion, one hundred ten million, one hundred twenty thousand, one hundred twenty".