2226817504781 has 2 divisors, whose sum is σ = 2226817504782. Its totient is φ = 2226817504780.

The previous prime is 2226817504771. The next prime is 2226817504853. The reversal of 2226817504781 is 1874057186222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1331390591881 + 895426912900 = 1153859^2 + 946270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2226817504781 - 2¹⁴ = 2226817488397 is a prime.

It is a super-2 number, since 2×2226817504781² (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 (2226817504771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113408752390 + 1113408752391.

It is an arithmetic number, because the mean of its divisors is an integer number (1113408752391).

Almost surely, 2^{2226817504781} is an apocalyptic number.

It is an amenable number.

2226817504781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2226817504781 is an equidigital number, since it uses as much as digits as its factorization.

2226817504781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 2226817504781 in words is "two trillion, two hundred twenty-six billion, eight hundred seventeen million, five hundred four thousand, seven hundred eighty-one".