221444122 has 8 divisors (see below), whose sum is σ = 334022400. Its totient is φ = 110103324.

The previous prime is 221444099. The next prime is 221444131.

221444122 is nontrivially palindromic in base 10.

221444122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 221444093 and 221444102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308922 + ... + 309637.

It is an arithmetic number, because the mean of its divisors is an integer number (41752800).

Almost surely, 2^221444122 is an apocalyptic number.

221444122 is a deficient number, since it is larger than the sum of its proper divisors (112578278).

221444122 is a wasteful number, since it uses less digits than its factorization.

221444122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618740.

The product of its digits is 1024, while the sum is 22.

The square root of 221444122 is about 14880.9986896041. The cubic root of 221444122 is about 604.9990865820. Note that the first 3 decimals are identical.

The spelling of 221444122 in words is "two hundred twenty-one million, four hundred forty-four thousand, one hundred twenty-two".