2012021566570 has 16 divisors (see below), whose sum is σ = 3626182923048. Its totient is φ = 803798825920.

The previous prime is 2012021566553. The next prime is 2012021566573. The reversal of 2012021566570 is 756651202102.

It can be written as a sum of positive squares in 4 ways, for example, as 953729981281 + 1058291585289 = 976591^2 + 1028733^2 .

It is not an unprimeable number, because it can be changed into a prime (2012021566573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126216721 + ... + 126232660.

Almost surely, 2^{2012021566570} is an apocalyptic number.

2012021566570 is a deficient number, since it is larger than the sum of its proper divisors (1614161356478).

2012021566570 is a wasteful number, since it uses less digits than its factorization.

2012021566570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252450185.

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 2012021566570 its reverse (756651202102), we get a palindrome (2768672768672).

The spelling of 2012021566570 in words is "two trillion, twelve billion, twenty-one million, five hundred sixty-six thousand, five hundred seventy".