2222345555789 has 4 divisors (see below), whose sum is σ = 2222384878524. Its totient is φ = 2222306233056.

The previous prime is 2222345555779. The next prime is 2222345555809. The reversal of 2222345555789 is 9875555432222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1068622522564 + 1153723033225 = 1033742^2 + 1074115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222345555789 is a prime.

It is a super-2 number, since 2×2222345555789² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222345555779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19576472 + ... + 19689665.

It is an arithmetic number, because the mean of its divisors is an integer number (555596219631).

Almost surely, 2^{2222345555789} is an apocalyptic number.

It is an amenable number.

2222345555789 is a deficient number, since it is larger than the sum of its proper divisors (39322735).

2222345555789 is an equidigital number, since it uses as much as digits as its factorization.

2222345555789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39322734.

The product of its digits is 60480000, while the sum is 59.

The spelling of 2222345555789 in words is "two trillion, two hundred twenty-two billion, three hundred forty-five million, five hundred fifty-five thousand, seven hundred eighty-nine".