221044354 has 4 divisors (see below), whose sum is σ = 331566534. Its totient is φ = 110522176.

The previous prime is 221044339. The next prime is 221044357. The reversal of 221044354 is 453440122.

It is a happy number.

221044354 is digitally balanced in base 2, 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 can be written as a sum of positive squares in only one way, i.e., 211266225 + 9778129 = 14535^2 + 3127^2 .

It is not an unprimeable number, because it can be changed into a prime (221044357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55261087 + ... + 55261090.

Almost surely, 2^221044354 is an apocalyptic number.

221044354 is a deficient number, since it is larger than the sum of its proper divisors (110522180).

221044354 is a wasteful number, since it uses less digits than its factorization.

221044354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110522179.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 221044354 is about 14867.5604589321. The cubic root of 221044354 is about 604.6348036200.

Adding to 221044354 its reverse (453440122), we get a palindrome (674484476).

It can be divided in two parts, 2210 and 44354, that added together give a palindrome (46564).

The spelling of 221044354 in words is "two hundred twenty-one million, forty-four thousand, three hundred fifty-four".