2521331230205 has 16 divisors (see below), whose sum is σ = 3188835578880. Its totient is φ = 1908505991232.

The previous prime is 2521331230199. The next prime is 2521331230213. The reversal of 2521331230205 is 5020321331252.

It is a cyclic number.

It is not a de Polignac number, because 2521331230205 - 2¹⁰ = 2521331229181 is a prime.

It is a super-2 number, since 2×2521331230205² (a number of 26 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, 16574429 + ... + 16725858.

It is an arithmetic number, because the mean of its divisors is an integer number (199302223680).

Almost surely, 2^{2521331230205} is an apocalyptic number.

It is an amenable number.

2521331230205 is a deficient number, since it is larger than the sum of its proper divisors (667504348675).

2521331230205 is a wasteful number, since it uses less digits than its factorization.

2521331230205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33301108.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 2521331230205 its reverse (5020321331252), we get a palindrome (7541652561457).

The spelling of 2521331230205 in words is "two trillion, five hundred twenty-one billion, three hundred thirty-one million, two hundred thirty thousand, two hundred five".