2020011011021 has 2 divisors, whose sum is σ = 2020011011022. Its totient is φ = 2020011011020.

The previous prime is 2020011011009. The next prime is 2020011011113. The reversal of 2020011011021 is 1201101100202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1748580430921 + 271430580100 = 1322339^2 + 520990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020011011021 - 2¹⁴ = 2020010994637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020011010993 and 2020011011011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020011010021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010005505510 + 1010005505511.

It is an arithmetic number, because the mean of its divisors is an integer number (1010005505511).

Almost surely, 2^{2020011011021} is an apocalyptic number.

It is an amenable number.

2020011011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020011011021 is an equidigital number, since it uses as much as digits as its factorization.

2020011011021 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 2020011011021 its reverse (1201101100202), we get a palindrome (3221112111223).

The spelling of 2020011011021 in words is "two trillion, twenty billion, eleven million, eleven thousand, twenty-one".