222655687493 has 2 divisors, whose sum is σ = 222655687494. Its totient is φ = 222655687492.

The previous prime is 222655687469. The next prime is 222655687517. The reversal of 222655687493 is 394786556222.

222655687493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (222655687469) and next prime (222655687517).

It can be written as a sum of positive squares in only one way, i.e., 222653747044 + 1940449 = 471862^2 + 1393^2 .

It is a cyclic number.

It is not a de Polignac number, because 222655687493 - 2³⁴ = 205475818309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222655680493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111327843746 + 111327843747.

It is an arithmetic number, because the mean of its divisors is an integer number (111327843747).

Almost surely, 2^222655687493 is an apocalyptic number.

It is an amenable number.

222655687493 is a deficient number, since it is larger than the sum of its proper divisors (1).

222655687493 is an equidigital number, since it uses as much as digits as its factorization.

222655687493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43545600, while the sum is 59.

The spelling of 222655687493 in words is "two hundred twenty-two billion, six hundred fifty-five million, six hundred eighty-seven thousand, four hundred ninety-three".