222222465 has 12 divisors (see below), whose sum is σ = 385185684. Its totient is φ = 118518624.

The previous prime is 222222463. The next prime is 222222491. The reversal of 222222465 is 564222222.

222222465 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 2 ways, for example, as 161569521 + 60652944 = 12711^2 + 7788^2 .

It is not a de Polignac number, because 222222465 - 2¹ = 222222463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222222463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2469094 + ... + 2469183.

It is an arithmetic number, because the mean of its divisors is an integer number (32098807).

Almost surely, 2^222222465 is an apocalyptic number.

It is an amenable number.

222222465 is a deficient number, since it is larger than the sum of its proper divisors (162963219).

222222465 is a wasteful number, since it uses less digits than its factorization.

222222465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938288 (or 4938285 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 222222465 is about 14907.1279930106. The cubic root of 222222465 is about 605.7070848555.

Adding to 222222465 its reverse (564222222), we get a palindrome (786444687).

The spelling of 222222465 in words is "two hundred twenty-two million, two hundred twenty-two thousand, four hundred sixty-five".