2001122010212 has 24 divisors (see below), whose sum is σ = 3771388399800. Its totient is φ = 923584225536.

The previous prime is 2001122010211. The next prime is 2001122010227. The reversal of 2001122010212 is 2120102211002.

It can be written as a sum of positive squares in 4 ways, for example, as 96103720036 + 1905018290176 = 310006^2 + 1380224^2 .

It is not an unprimeable number, because it can be changed into a prime (2001122010211) 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 in 7 ways as a sum of consecutive naturals, for example, 6117464 + ... + 6436272.

It is an arithmetic number, because the mean of its divisors is an integer number (157141183325).

Almost surely, 2^{2001122010212} is an apocalyptic number.

It is an amenable number.

2001122010212 is a deficient number, since it is larger than the sum of its proper divisors (1770266389588).

2001122010212 is a wasteful number, since it uses less digits than its factorization.

2001122010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439535 (or 439533 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001122010212 its reverse (2120102211002), we get a palindrome (4121224221214).

The spelling of 2001122010212 in words is "two trillion, one billion, one hundred twenty-two million, ten thousand, two hundred twelve".