222231445 has 8 divisors (see below), whose sum is σ = 266758560. Its totient is φ = 177731280.

The previous prime is 222231433. The next prime is 222231481. The reversal of 222231445 is 544132222.

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

It is a de Polignac number, because none of the positive numbers 2^k-222231445 is a prime.

It is a super-3 number, since 3×222231445³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 25050 + ... + 32740.

It is an arithmetic number, because the mean of its divisors is an integer number (33344820).

Almost surely, 2^222231445 is an apocalyptic number.

It is an amenable number.

222231445 is a deficient number, since it is larger than the sum of its proper divisors (44527115).

222231445 is an equidigital number, since it uses as much as digits as its factorization.

222231445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13475.

The product of its digits is 3840, while the sum is 25.

The square root of 222231445 is about 14907.4291881598. The cubic root of 222231445 is about 605.7152436112.

Adding to 222231445 its reverse (544132222), we get a palindrome (766363667).

The spelling of 222231445 in words is "two hundred twenty-two million, two hundred thirty-one thousand, four hundred forty-five".