2012202020209 has 4 divisors (see below), whose sum is σ = 2050168096116. Its totient is φ = 1974235944304.

The previous prime is 2012202020203. The next prime is 2012202020239. The reversal of 2012202020209 is 9020202022102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1501720349809 + 510481670400 = 1225447^2 + 714480^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012202020209 - 2³³ = 2003612085617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012202020209.

It is not an unprimeable number, because it can be changed into a prime (2012202020203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18983037874 + ... + 18983037979.

It is an arithmetic number, because the mean of its divisors is an integer number (512542024029).

Almost surely, 2^{2012202020209} is an apocalyptic number.

It is an amenable number.

2012202020209 is a deficient number, since it is larger than the sum of its proper divisors (37966075907).

2012202020209 is an equidigital number, since it uses as much as digits as its factorization.

2012202020209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37966075906.

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 2012202020209 in words is "two trillion, twelve billion, two hundred two million, twenty thousand, two hundred nine".