20100110121988 has 36 divisors (see below), whose sum is σ = 38109738522240. Its totient is φ = 9271950601056.

The previous prime is 20100110121979. The next prime is 20100110122013. The reversal of 20100110121988 is 88912101100102.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6800668 + ... + 9297811.

It is an arithmetic number, because the mean of its divisors is an integer number (1058603847840).

Almost surely, 2^{20100110121988} is an apocalyptic number.

It is an amenable number.

20100110121988 is a deficient number, since it is larger than the sum of its proper divisors (18009628400252).

20100110121988 is a wasteful number, since it uses less digits than its factorization.

20100110121988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16100356 (or 16100341 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 34.

The spelling of 20100110121988 in words is "twenty trillion, one hundred billion, one hundred ten million, one hundred twenty-one thousand, nine hundred eighty-eight".