10101001001002 has 4 divisors (see below), whose sum is σ = 15151501501506. Its totient is φ = 5050500500500.

The previous prime is 10101001000999. The next prime is 10101001001009. The reversal of 10101001001002 is 20010010010101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9490213423161 + 610787577841 = 3080619^2 + 781529^2 .

It is not an unprimeable number, because it can be changed into a prime (10101001001009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525250250249 + ... + 2525250250252.

Almost surely, 2^{10101001001002} is an apocalyptic number.

10101001001002 is a deficient number, since it is larger than the sum of its proper divisors (5050500500504).

10101001001002 is an equidigital number, since it uses as much as digits as its factorization.

10101001001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050500500503.

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

Adding to 10101001001002 its reverse (20010010010101), we get a palindrome (30111011011103).

Subtracting 10101001001002 from its reverse (20010010010101), we obtain a palindrome (9909009009099).

It can be divided in two parts, 1010100 and 1001002, that added together give a palindrome (2011102).

The spelling of 10101001001002 in words is "ten trillion, one hundred one billion, one million, one thousand, two".