2012020999969 has 2 divisors, whose sum is σ = 2012020999970. Its totient is φ = 2012020999968.

The previous prime is 2012020999943. The next prime is 2012020999991. The reversal of 2012020999969 is 9699990202102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1783995649569 + 228025350400 = 1335663^2 + 477520^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012020999969 - 2⁷ = 2012020999841 is a prime.

It is a super-2 number, since 2×2012020999969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2012020994969) 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, 1006010499984 + 1006010499985.

It is an arithmetic number, because the mean of its divisors is an integer number (1006010499985).

Almost surely, 2^{2012020999969} is an apocalyptic number.

It is an amenable number.

2012020999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012020999969 is an equidigital number, since it uses as much as digits as its factorization.

2012020999969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2834352, while the sum is 58.

The spelling of 2012020999969 in words is "two trillion, twelve billion, twenty million, nine hundred ninety-nine thousand, nine hundred sixty-nine".