222011120 has 40 divisors (see below), whose sum is σ = 518832864. Its totient is φ = 88347392.

The previous prime is 222011089. The next prime is 222011129. The reversal of 222011120 is 21110222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011129) 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, 8717 + ... + 22803.

Almost surely, 2^222011120 is an apocalyptic number.

222011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222011120 is an abundant number, since it is smaller than the sum of its proper divisors (296821744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222011120 is a wasteful number, since it uses less digits than its factorization.

222011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14297 (or 14291 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 222011120 is about 14900.0375838452. The cubic root of 222011120 is about 605.5150044139.

Adding to 222011120 its reverse (21110222), we get a palindrome (243121342).

The spelling of 222011120 in words is "two hundred twenty-two million, eleven thousand, one hundred twenty".