222346128145 has 12 divisors (see below), whose sum is σ = 271944608796. Its totient is φ = 174520723520.

The previous prime is 222346128071. The next prime is 222346128203. The reversal of 222346128145 is 541821643222.

222346128145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 14401920064 + 207944208081 = 120008^2 + 456009^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222346128145 is a prime.

It is a super-2 number, since 2×222346128145² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222346128098 and 222346128107.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 7901446 + ... + 7929535.

It is an arithmetic number, because the mean of its divisors is an integer number (22662050733).

Almost surely, 2^222346128145 is an apocalyptic number.

It is an amenable number.

222346128145 is a deficient number, since it is larger than the sum of its proper divisors (49598480651).

222346128145 is an equidigital number, since it uses as much as digits as its factorization.

222346128145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15831092 (or 15831039 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The spelling of 222346128145 in words is "two hundred twenty-two billion, three hundred forty-six million, one hundred twenty-eight thousand, one hundred forty-five".