222011444 has 6 divisors (see below), whose sum is σ = 388520034. Its totient is φ = 111005720.

The previous prime is 222011423. The next prime is 222011459. The reversal of 222011444 is 444110222.

It can be written as a sum of positive squares in only one way, i.e., 222010000 + 1444 = 14900^2 + 38^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27751427 + ... + 27751434.

It is an arithmetic number, because the mean of its divisors is an integer number (64753339).

Almost surely, 2^222011444 is an apocalyptic number.

It is an amenable number.

222011444 is a deficient number, since it is larger than the sum of its proper divisors (166508590).

222011444 is a wasteful number, since it uses less digits than its factorization.

222011444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55502865 (or 55502863 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 222011444 is about 14900.0484562970. The cubic root of 222011444 is about 605.5152989739.

Adding to 222011444 its reverse (444110222), we get a palindrome (666121666).

It can be divided in two parts, 22201 and 1444, that multiplied together give a square (32058244 = 5662²).

The spelling of 222011444 in words is "two hundred twenty-two million, eleven thousand, four hundred forty-four".