2012001001000 has 64 divisors (see below), whose sum is σ = 4738070497680. Its totient is φ = 799674220800.

The previous prime is 2012001000983. The next prime is 2012001001001. The reversal of 2012001001000 is 1001002102.

It can be written as a sum of positive squares in 8 ways, for example, as 257716644964 + 1754284356036 = 507658^2 + 1324494^2 .

It is not an unprimeable number, because it can be changed into a prime (2012001001001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6250647 + ... + 6564646.

Almost surely, 2^{2012001001000} is an apocalyptic number.

2012001001000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012001001000 is an abundant number, since it is smaller than the sum of its proper divisors (2726069496680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2012001001000 is a wasteful number, since it uses less digits than its factorization.

2012001001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12815471 (or 12815457 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 2012001001000 its reverse (1001002102), we get a palindrome (2013002003102).

The spelling of 2012001001000 in words is "two trillion, twelve billion, one million, one thousand".