11020001012021 has 2 divisors, whose sum is σ = 11020001012022. Its totient is φ = 11020001012020.

The previous prime is 11020001011979. The next prime is 11020001012039. The reversal of 11020001012021 is 12021010002011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7430912440900 + 3589088571121 = 2725970^2 + 1894489^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020001012021 - 2¹⁴ = 11020000995637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11020001011993 and 11020001012011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020001012051) 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 as a sum of consecutive naturals, namely, 5510000506010 + 5510000506011.

It is an arithmetic number, because the mean of its divisors is an integer number (5510000506011).

Almost surely, 2^{11020001012021} is an apocalyptic number.

It is an amenable number.

11020001012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020001012021 is an equidigital number, since it uses as much as digits as its factorization.

11020001012021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11020001012021 its reverse (12021010002011), we get a palindrome (23041011014032).

The spelling of 11020001012021 in words is "eleven trillion, twenty billion, one million, twelve thousand, twenty-one".