222131043121 has 8 divisors (see below), whose sum is σ = 243731595240. Its totient is φ = 201175283712.

The previous prime is 222131043119. The next prime is 222131043139. The reversal of 222131043121 is 121340131222.

222131043121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7484153121 + 214646890000 = 86511^2 + 463300^2 .

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

It is not a de Polignac number, because 222131043121 - 2¹ = 222131043119 is a prime.

It is a super-2 number, since 2×222131043121² (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 = 222131043092 and 222131043101.

It is not an unprimeable number, because it can be changed into a prime (222131043221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161197456 + ... + 161198833.

It is an arithmetic number, because the mean of its divisors is an integer number (30466449405).

Almost surely, 2^222131043121 is an apocalyptic number.

It is an amenable number.

222131043121 is a deficient number, since it is larger than the sum of its proper divisors (21600552119).

222131043121 is a wasteful number, since it uses less digits than its factorization.

222131043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322396355.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 222131043121 its reverse (121340131222), we get a palindrome (343471174343).

The spelling of 222131043121 in words is "two hundred twenty-two billion, one hundred thirty-one million, forty-three thousand, one hundred twenty-one".