2220580637281 has 2 divisors, whose sum is σ = 2220580637282. Its totient is φ = 2220580637280.

The previous prime is 2220580637279. The next prime is 2220580637311. The reversal of 2220580637281 is 1827360850222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2211047067681 + 9533569600 = 1486959^2 + 97640^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220580637281 - 2¹ = 2220580637279 is a prime.

It is a super-2 number, since 2×2220580637281² (a number of 25 digits) contains 22 as substring.

Together with 2220580637279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2220580637201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110290318640 + 1110290318641.

It is an arithmetic number, because the mean of its divisors is an integer number (1110290318641).

Almost surely, 2^{2220580637281} is an apocalyptic number.

It is an amenable number.

2220580637281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220580637281 is an equidigital number, since it uses as much as digits as its factorization.

2220580637281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 2220580637281 in words is "two trillion, two hundred twenty billion, five hundred eighty million, six hundred thirty-seven thousand, two hundred eighty-one".