1020112010000 has 100 divisors (see below), whose sum is σ = 2470480755600. Its totient is φ = 407931216000.

The previous prime is 1020112009999. The next prime is 1020112010051. The reversal of 1020112010000 is 102110201.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1020112010000.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42177911 + ... + 42202089.

It is an arithmetic number, because the mean of its divisors is an integer number (24704807556).

Almost surely, 2^{1020112010000} is an apocalyptic number.

1020112010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020112010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235240377800).

1020112010000 is an abundant number, since it is smaller than the sum of its proper divisors (1450368745600).

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

1020112010000 is an equidigital number, since it uses as much as digits as its factorization.

1020112010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28426 (or 28405 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1020112010000 its reverse (102110201), we get a palindrome (1020214120201).

The spelling of 1020112010000 in words is "one trillion, twenty billion, one hundred twelve million, ten thousand".