222442031123 has 4 divisors (see below), whose sum is σ = 239552956608. Its totient is φ = 205331105640.

The previous prime is 222442031087. The next prime is 222442031257. The reversal of 222442031123 is 321130244222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222442031123 is a prime.

It is a super-2 number, since 2×222442031123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222442031092 and 222442031101.

It is not an unprimeable number, because it can be changed into a prime (222442051123) 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, 8555462723 + ... + 8555462748.

It is an arithmetic number, because the mean of its divisors is an integer number (59888239152).

Almost surely, 2^222442031123 is an apocalyptic number.

222442031123 is a deficient number, since it is larger than the sum of its proper divisors (17110925485).

222442031123 is a wasteful number, since it uses less digits than its factorization.

222442031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17110925484.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 222442031123 its reverse (321130244222), we get a palindrome (543572275345).

The spelling of 222442031123 in words is "two hundred twenty-two billion, four hundred forty-two million, thirty-one thousand, one hundred twenty-three".