1020021120011 has 2 divisors, whose sum is σ = 1020021120012. Its totient is φ = 1020021120010.

The previous prime is 1020021119983. The next prime is 1020021120037. The reversal of 1020021120011 is 1100211200201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020021120011 - 2³⁰ = 1018947378187 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020021119974 and 1020021120001.

It is not a weakly prime, because it can be changed into another prime (1020021120061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510010560005 + 510010560006.

It is an arithmetic number, because the mean of its divisors is an integer number (510010560006).

Almost surely, 2^{1020021120011} is an apocalyptic number.

1020021120011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020021120011 is an equidigital number, since it uses as much as digits as its factorization.

1020021120011 is an evil number, because the sum of its binary digits is even.

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

Adding to 1020021120011 its reverse (1100211200201), we get a palindrome (2120232320212).

The spelling of 1020021120011 in words is "one trillion, twenty billion, twenty-one million, one hundred twenty thousand, eleven".