222445031 has 8 divisors (see below), whose sum is σ = 227918784. Its totient is φ = 217002240.

The previous prime is 222445021. The next prime is 222445037. The reversal of 222445031 is 130544222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222445031 is a prime.

It is a super-2 number, since 2×222445031² = 98963583633181922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222444988 and 222445006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222445037) 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, 7151 + ... + 22271.

It is an arithmetic number, because the mean of its divisors is an integer number (28489848).

Almost surely, 2^222445031 is an apocalyptic number.

222445031 is a deficient number, since it is larger than the sum of its proper divisors (5473753).

222445031 is a wasteful number, since it uses less digits than its factorization.

222445031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15481.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 222445031 is about 14914.5912112937. The cubic root of 222445031 is about 605.9092318677.

Adding to 222445031 its reverse (130544222), we get a palindrome (352989253).

The spelling of 222445031 in words is "two hundred twenty-two million, four hundred forty-five thousand, thirty-one".