2205315544261 has 2 divisors, whose sum is σ = 2205315544262. Its totient is φ = 2205315544260.

The previous prime is 2205315544199. The next prime is 2205315544433. The reversal of 2205315544261 is 1624455135022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1832842130625 + 372473413636 = 1353825^2 + 610306^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205315544261 - 2¹³ = 2205315536069 is a prime.

It is a super-2 number, since 2×2205315544261² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2205315545261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102657772130 + 1102657772131.

It is an arithmetic number, because the mean of its divisors is an integer number (1102657772131).

Almost surely, 2^{2205315544261} is an apocalyptic number.

It is an amenable number.

2205315544261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205315544261 is an equidigital number, since it uses as much as digits as its factorization.

2205315544261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 2205315544261 in words is "two trillion, two hundred five billion, three hundred fifteen million, five hundred forty-four thousand, two hundred sixty-one".