222134043421 has 4 divisors (see below), whose sum is σ = 226860299712. Its totient is φ = 217407787132.

The previous prime is 222134043389. The next prime is 222134043437. The reversal of 222134043421 is 124340431222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222134043421 - 2⁵ = 222134043389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222134043421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222134343421) 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, 2363128075 + ... + 2363128168.

It is an arithmetic number, because the mean of its divisors is an integer number (56715074928).

Almost surely, 2^222134043421 is an apocalyptic number.

It is an amenable number.

222134043421 is a deficient number, since it is larger than the sum of its proper divisors (4726256291).

222134043421 is an equidigital number, since it uses as much as digits as its factorization.

222134043421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726256290.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 222134043421 its reverse (124340431222), we get a palindrome (346474474643).

The spelling of 222134043421 in words is "two hundred twenty-two billion, one hundred thirty-four million, forty-three thousand, four hundred twenty-one".