1000021001011 has 8 divisors (see below), whose sum is σ = 1043766671904. Its totient is φ = 956297538240.

The previous prime is 1000021001009. The next prime is 1000021001027. The reversal of 1000021001011 is 1101001200001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000021001011 - 2¹ = 1000021001009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000021000985 and 1000021001003.

It is not an unprimeable number, because it can be changed into a prime (1000021001041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5459970 + ... + 5640151.

It is an arithmetic number, because the mean of its divisors is an integer number (130470833988).

Almost surely, 2^{1000021001011} is an apocalyptic number.

1000021001011 is a deficient number, since it is larger than the sum of its proper divisors (43745670893).

1000021001011 is a wasteful number, since it uses less digits than its factorization.

1000021001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104061.

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

Adding to 1000021001011 its reverse (1101001200001), we get a palindrome (2101022201012).

The spelling of 1000021001011 in words is "one trillion, twenty-one million, one thousand, eleven".