221124434 has 8 divisors (see below), whose sum is σ = 331753968. Its totient is φ = 110539780.

The previous prime is 221124433. The next prime is 221124437. The reversal of 221124434 is 434421122.

221124434 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 not an unprimeable number, because it can be changed into a prime (221124433) 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, 7049 + ... + 22179.

It is an arithmetic number, because the mean of its divisors is an integer number (41469246).

Almost surely, 2^221124434 is an apocalyptic number.

221124434 is a deficient number, since it is larger than the sum of its proper divisors (110629534).

221124434 is a wasteful number, since it uses less digits than its factorization.

221124434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22440.

The product of its digits is 1536, while the sum is 23.

The square root of 221124434 is about 14870.2533266922. The cubic root of 221124434 is about 604.7078105502.

Adding to 221124434 its reverse (434421122), we get a palindrome (655545556).

The spelling of 221124434 in words is "two hundred twenty-one million, one hundred twenty-four thousand, four hundred thirty-four".