222444404421 has 8 divisors (see below), whose sum is σ = 296595451200. Its totient is φ = 148294813632.

The previous prime is 222444404417. The next prime is 222444404423. The reversal of 222444404421 is 124404444222.

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

It is not a de Polignac number, because 222444404421 - 2² = 222444404417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222444404423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64576 + ... + 670118.

It is an arithmetic number, because the mean of its divisors is an integer number (37074431400).

Almost surely, 2^222444404421 is an apocalyptic number.

It is an amenable number.

222444404421 is a deficient number, since it is larger than the sum of its proper divisors (74151046779).

222444404421 is a wasteful number, since it uses less digits than its factorization.

222444404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727995.

The product of its (nonzero) digits is 65536, while the sum is 33.

Adding to 222444404421 its reverse (124404444222), we get a palindrome (346848848643).

The spelling of 222444404421 in words is "two hundred twenty-two billion, four hundred forty-four million, four hundred four thousand, four hundred twenty-one".