221120122 has 8 divisors (see below), whose sum is σ = 351190836. Its totient is φ = 104056512.

The previous prime is 221120113. The next prime is 221120129. The reversal of 221120122 is 221021122.

It is a happy number.

221120122 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 218714521 + 2405601 = 14789^2 + 1551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221120129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3251733 + ... + 3251800.

Almost surely, 2^221120122 is an apocalyptic number.

221120122 is a deficient number, since it is larger than the sum of its proper divisors (130070714).

221120122 is a wasteful number, since it uses less digits than its factorization.

221120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503552.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 221120122 is about 14870.1083385428. The cubic root of 221120122 is about 604.7038798568.

Adding to 221120122 its reverse (221021122), we get a palindrome (442141244).

The spelling of 221120122 in words is "two hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".