222444521331 has 16 divisors (see below), whose sum is σ = 316818441504. Its totient is φ = 138337869824.

The previous prime is 222444521287. The next prime is 222444521333. The reversal of 222444521331 is 133125444222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222444521331 - 2¹³ = 222444513139 is a prime.

It is a super-2 number, since 2×222444521331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222444521292 and 222444521301.

It is not an unprimeable number, because it can be changed into a prime (222444521333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19293606 + ... + 19305131.

It is an arithmetic number, because the mean of its divisors is an integer number (19801152594).

Almost surely, 2^222444521331 is an apocalyptic number.

222444521331 is a deficient number, since it is larger than the sum of its proper divisors (94373920173).

222444521331 is a wasteful number, since it uses less digits than its factorization.

222444521331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38598870.

The product of its digits is 46080, while the sum is 33.

Adding to 222444521331 its reverse (133125444222), we get a palindrome (355569965553).

The spelling of 222444521331 in words is "two hundred twenty-two billion, four hundred forty-four million, five hundred twenty-one thousand, three hundred thirty-one".