1002001101010 has 64 divisors (see below), whose sum is σ = 2220061987584. Its totient is φ = 317081952000.

The previous prime is 1002001100999. The next prime is 1002001101011. The reversal of 1002001101010 is 101011002001.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 1002001100984 and 1002001101002.

It is not an unprimeable number, because it can be changed into a prime (1002001101011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8954305 + ... + 9065515.

It is an arithmetic number, because the mean of its divisors is an integer number (34688468556).

Almost surely, 2^{1002001101010} is an apocalyptic number.

1002001101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1002001101010 is an abundant number, since it is smaller than the sum of its proper divisors (1218060886574).

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

1002001101010 is a wasteful number, since it uses less digits than its factorization.

1002001101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121139.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 1002001101010 its reverse (101011002001), we get a palindrome (1103012103011).

Subtracting from 1002001101010 its reverse (101011002001), we obtain a palindrome (900990099009).

It can be divided in two parts, 1002001 and 101010, that added together give a palindrome (1103011).

The spelling of 1002001101010 in words is "one trillion, two billion, one million, one hundred one thousand, ten".