222521342 has 4 divisors (see below), whose sum is σ = 333782016. Its totient is φ = 111260670.

The previous prime is 222521339. The next prime is 222521357. The reversal of 222521342 is 243125222.

222521342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55630334 + ... + 55630337.

It is an arithmetic number, because the mean of its divisors is an integer number (83445504).

Almost surely, 2^222521342 is an apocalyptic number.

222521342 is a deficient number, since it is larger than the sum of its proper divisors (111260674).

222521342 is a wasteful number, since it uses less digits than its factorization.

222521342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111260673.

The product of its digits is 1920, while the sum is 23.

The square root of 222521342 is about 14917.1492584877. The cubic root of 222521342 is about 605.9785107855.

Adding to 222521342 its reverse (243125222), we get a palindrome (465646564).

The spelling of 222521342 in words is "two hundred twenty-two million, five hundred twenty-one thousand, three hundred forty-two".