222520626 has 12 divisors (see below), whose sum is σ = 482128062. Its totient is φ = 74173536.

The previous prime is 222520621. The next prime is 222520651. The reversal of 222520626 is 626025222.

222520626 is digitally balanced in base 3, 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 only one way, i.e., 111323601 + 111197025 = 10551^2 + 10545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222520626.

It is not an unprimeable number, because it can be changed into a prime (222520621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6181111 + ... + 6181146.

Almost surely, 2^222520626 is an apocalyptic number.

222520626 is an abundant number, since it is smaller than the sum of its proper divisors (259607436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222520626 is a wasteful number, since it uses less digits than its factorization.

222520626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12362265 (or 12362262 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 222520626 is about 14917.1252592448. The cubic root of 222520626 is about 605.9778608387.

Adding to 222520626 its reverse (626025222), we get a palindrome (848545848).

The spelling of 222520626 in words is "two hundred twenty-two million, five hundred twenty thousand, six hundred twenty-six".