2012199999973 has 2 divisors, whose sum is σ = 2012199999974. Its totient is φ = 2012199999972.

The previous prime is 2012199999959. The next prime is 2012200000037. The reversal of 2012199999973 is 3799999912102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1053870602724 + 958329397249 = 1026582^2 + 978943^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012199999973 - 2¹⁷ = 2012199868901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012199999923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006099999986 + 1006099999987.

It is an arithmetic number, because the mean of its divisors is an integer number (1006099999987).

Almost surely, 2^{2012199999973} is an apocalyptic number.

It is an amenable number.

2012199999973 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012199999973 is an equidigital number, since it uses as much as digits as its factorization.

2012199999973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44641044, while the sum is 70.

The spelling of 2012199999973 in words is "two trillion, twelve billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-three".