1001212020011 has 8 divisors (see below), whose sum is σ = 1144445846784. Its totient is φ = 858029077800.

The previous prime is 1001212019963. The next prime is 1001212020077. The reversal of 1001212020011 is 1100202121001.

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 1001212020011 - 2³⁰ = 1000138278187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001212019974 and 1001212020001.

It is not an unprimeable number, because it can be changed into a prime (1001212020811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12678965 + ... + 12757686.

It is an arithmetic number, because the mean of its divisors is an integer number (143055730848).

Almost surely, 2^{1001212020011} is an apocalyptic number.

1001212020011 is a deficient number, since it is larger than the sum of its proper divisors (143233826773).

1001212020011 is an equidigital number, since it uses as much as digits as its factorization.

1001212020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25442281.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1001212020011 its reverse (1100202121001), we get a palindrome (2101414141012).

The spelling of 1001212020011 in words is "one trillion, one billion, two hundred twelve million, twenty thousand, eleven".