2001142452205 has 16 divisors (see below), whose sum is σ = 2675267365680. Its totient is φ = 1426809259008.

The previous prime is 2001142452193. The next prime is 2001142452229. The reversal of 2001142452205 is 5022542411002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 372688272324 + 1628454179881 = 610482^2 + 1276109^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001142452205 - 2¹⁷ = 2001142321133 is a prime.

It is a super-2 number, since 2×2001142452205² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530805132 + ... + 530808901.

It is an arithmetic number, because the mean of its divisors is an integer number (167204210355).

Almost surely, 2^{2001142452205} is an apocalyptic number.

It is an amenable number.

2001142452205 is a deficient number, since it is larger than the sum of its proper divisors (674124913475).

2001142452205 is a wasteful number, since it uses less digits than its factorization.

2001142452205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061614080.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 2001142452205 its reverse (5022542411002), we get a palindrome (7023684863207).

The spelling of 2001142452205 in words is "two trillion, one billion, one hundred forty-two million, four hundred fifty-two thousand, two hundred five".