1001002010112 has 240 divisors, whose sum is σ = 3116425952640. Its totient is φ = 307482034176.

The previous prime is 1001002010101. The next prime is 1001002010191. The reversal of 1001002010112 is 2110102001001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1001002010094 and 1001002010103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36347964 + ... + 36375492.

It is an arithmetic number, because the mean of its divisors is an integer number (12985108136).

Almost surely, 2^{1001002010112} is an apocalyptic number.

1001002010112 is a gapful number since it is divisible by the number (12) 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 1001002010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1558212976320).

1001002010112 is an abundant number, since it is smaller than the sum of its proper divisors (2115423942528).

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

1001002010112 is a wasteful number, since it uses less digits than its factorization.

1001002010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28173 (or 28154 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1001002010112 its reverse (2110102001001), we get a palindrome (3111104011113).

The spelling of 1001002010112 in words is "one trillion, one billion, two million, ten thousand, one hundred twelve".