102110012120020 has 24 divisors (see below), whose sum is σ = 215222283859968. Its totient is φ = 40693288960800.

The previous prime is 102110012119991. The next prime is 102110012120029. The reversal of 102110012120020 is 20021210011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102110012120029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9419737396 + ... + 9419748235.

It is an arithmetic number, because the mean of its divisors is an integer number (8967595160832).

Almost surely, 2^{102110012120020} is an apocalyptic number.

102110012120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102110012120020 is an abundant number, since it is smaller than the sum of its proper divisors (113112271739948).

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

102110012120020 is a wasteful number, since it uses less digits than its factorization.

102110012120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18839485911 (or 18839485909 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102110012120020 its reverse (20021210011201), we get a palindrome (122131222131221).

The spelling of 102110012120020 in words is "one hundred two trillion, one hundred ten billion, twelve million, one hundred twenty thousand, twenty".