222120356 has 6 divisors (see below), whose sum is σ = 388710630. Its totient is φ = 111060176.

The previous prime is 222120341. The next prime is 222120359. The reversal of 222120356 is 653021222.

222120356 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 only one way, i.e., 173817856 + 48302500 = 13184^2 + 6950^2 .

It is not an unprimeable number, because it can be changed into a prime (222120359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27765041 + ... + 27765048.

It is an arithmetic number, because the mean of its divisors is an integer number (64785105).

Almost surely, 2^222120356 is an apocalyptic number.

It is an amenable number.

222120356 is a deficient number, since it is larger than the sum of its proper divisors (166590274).

222120356 is a wasteful number, since it uses less digits than its factorization.

222120356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55530093 (or 55530091 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 222120356 is about 14903.7027613946. The cubic root of 222120356 is about 605.6142985269.

Adding to 222120356 its reverse (653021222), we get a palindrome (875141578).

The spelling of 222120356 in words is "two hundred twenty-two million, one hundred twenty thousand, three hundred fifty-six".