1012020220069 has 2 divisors, whose sum is σ = 1012020220070. Its totient is φ = 1012020220068.

The previous prime is 1012020220007. The next prime is 1012020220087. The reversal of 1012020220069 is 9600220202101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1011106669444 + 913550625 = 1005538^2 + 30225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012020220069 - 2⁹ = 1012020219557 is a prime.

It is a super-2 number, since 2×1012020220069² (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 (1012020224069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506010110034 + 506010110035.

It is an arithmetic number, because the mean of its divisors is an integer number (506010110035).

Almost surely, 2^{1012020220069} is an apocalyptic number.

It is an amenable number.

1012020220069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012020220069 is an equidigital number, since it uses as much as digits as its factorization.

1012020220069 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 1012020220069 in words is "one trillion, twelve billion, twenty million, two hundred twenty thousand, sixty-nine".