222245444 has 12 divisors (see below), whose sum is σ = 402341100. Its totient is φ = 107290848.

The previous prime is 222245423. The next prime is 222245449. The reversal of 222245444 is 444542222.

222245444 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 127961344 + 94284100 = 11312^2 + 9710^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (222245449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957839 + ... + 958070.

It is an arithmetic number, because the mean of its divisors is an integer number (33528425).

Almost surely, 2^222245444 is an apocalyptic number.

It is an amenable number.

222245444 is a deficient number, since it is larger than the sum of its proper divisors (180095656).

222245444 is a wasteful number, since it uses less digits than its factorization.

222245444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915942 (or 1915940 counting only the distinct ones).

The product of its digits is 20480, while the sum is 29.

The square root of 222245444 is about 14907.8987117568. The cubic root of 222245444 is about 605.7279619278.

Adding to 222245444 its reverse (444542222), we get a palindrome (666787666).

The spelling of 222245444 in words is "two hundred twenty-two million, two hundred forty-five thousand, four hundred forty-four".