222520422 has 32 divisors (see below), whose sum is σ = 461311200. Its totient is φ = 71472128.

The previous prime is 222520421. The next prime is 222520439. The reversal of 222520422 is 224025222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222520421) 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 15 ways as a sum of consecutive naturals, for example, 116854 + ... + 118742.

It is an arithmetic number, because the mean of its divisors is an integer number (14415975).

Almost surely, 2^222520422 is an apocalyptic number.

222520422 is an abundant number, since it is smaller than the sum of its proper divisors (238790778).

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

222520422 is a wasteful number, since it uses less digits than its factorization.

222520422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 222520422 is about 14917.1184214646. The cubic root of 222520422 is about 605.9776756581.

Adding to 222520422 its reverse (224025222), we get a palindrome (446545644).

The spelling of 222520422 in words is "two hundred twenty-two million, five hundred twenty thousand, four hundred twenty-two".