1021112020011 has 8 divisors (see below), whose sum is σ = 1363600087360. Its totient is φ = 679682649672.

The previous prime is 1021112020003. The next prime is 1021112020039. The reversal of 1021112020011 is 1100202111201.

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

It is not a de Polignac number, because 1021112020011 - 2³ = 1021112020003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021112020211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264672001 + ... + 264675858.

It is an arithmetic number, because the mean of its divisors is an integer number (170450010920).

Almost surely, 2^{1021112020011} is an apocalyptic number.

1021112020011 is a deficient number, since it is larger than the sum of its proper divisors (342488067349).

1021112020011 is an equidigital number, since it uses as much as digits as its factorization.

1021112020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529348505.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1021112020011 its reverse (1100202111201), we get a palindrome (2121314131212).

The spelling of 1021112020011 in words is "one trillion, twenty-one billion, one hundred twelve million, twenty thousand, eleven".