2021101021033 has 2 divisors, whose sum is σ = 2021101021034. Its totient is φ = 2021101021032.

The previous prime is 2021101021019. The next prime is 2021101021139. The reversal of 2021101021033 is 3301201011202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1747438116649 + 273662904384 = 1321907^2 + 523128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021101021033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021101020998 and 2021101021016.

It is not a weakly prime, because it can be changed into another prime (2021101022033) 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 as a sum of consecutive naturals, namely, 1010550510516 + 1010550510517.

It is an arithmetic number, because the mean of its divisors is an integer number (1010550510517).

Almost surely, 2^{2021101021033} is an apocalyptic number.

It is an amenable number.

2021101021033 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021101021033 is an equidigital number, since it uses as much as digits as its factorization.

2021101021033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2021101021033 its reverse (3301201011202), we get a palindrome (5322302032235).

The spelling of 2021101021033 in words is "two trillion, twenty-one billion, one hundred one million, twenty-one thousand, thirty-three".