2002021021069 has 2 divisors, whose sum is σ = 2002021021070. Its totient is φ = 2002021021068.

The previous prime is 2002021020983. The next prime is 2002021021073. The reversal of 2002021021069 is 9601201202002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1053076178025 + 948944843044 = 1026195^2 + 974138^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002021021069 - 2¹¹ = 2002021019021 is a prime.

It is a super-2 number, since 2×2002021021069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002021421069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001010510534 + 1001010510535.

It is an arithmetic number, because the mean of its divisors is an integer number (1001010510535).

Almost surely, 2^{2002021021069} is an apocalyptic number.

It is an amenable number.

2002021021069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002021021069 is an equidigital number, since it uses as much as digits as its factorization.

2002021021069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 2002021021069 in words is "two trillion, two billion, twenty-one million, twenty-one thousand, sixty-nine".