222031045 has 8 divisors (see below), whose sum is σ = 271464696. Its totient is φ = 174273216.

The previous prime is 222031013. The next prime is 222031049. The reversal of 222031045 is 540130222.

It can be written as a sum of positive squares in 4 ways, for example, as 3020644 + 219010401 = 1738^2 + 14799^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 222031045 - 2⁵ = 222031013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222031049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418662 + ... + 419191.

It is an arithmetic number, because the mean of its divisors is an integer number (33933087).

Almost surely, 2^222031045 is an apocalyptic number.

It is an amenable number.

222031045 is a deficient number, since it is larger than the sum of its proper divisors (49433651).

222031045 is an equidigital number, since it uses as much as digits as its factorization.

222031045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837911.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 222031045 is about 14900.7061913186. The cubic root of 222031045 is about 605.5331184098.

Adding to 222031045 its reverse (540130222), we get a palindrome (762161267).

The spelling of 222031045 in words is "two hundred twenty-two million, thirty-one thousand, forty-five".