221744122 has 8 divisors (see below), whose sum is σ = 332690400. Its totient is φ = 110847324.

The previous prime is 221744119. The next prime is 221744129. The reversal of 221744122 is 221447122.

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 (221744129) 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, 2329 + ... + 21187.

It is an arithmetic number, because the mean of its divisors is an integer number (41586300).

Almost surely, 2^221744122 is an apocalyptic number.

221744122 is a deficient number, since it is larger than the sum of its proper divisors (110946278).

221744122 is a wasteful number, since it uses less digits than its factorization.

221744122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24740.

The product of its digits is 1792, while the sum is 25.

The square root of 221744122 is about 14891.0752466032. The cubic root of 221744122 is about 605.2721695071.

The spelling of 221744122 in words is "two hundred twenty-one million, seven hundred forty-four thousand, one hundred twenty-two".