222555120 has 40 divisors (see below), whose sum is σ = 689921616. Its totient is φ = 59347968.

The previous prime is 222555119. The next prime is 222555133. The reversal of 222555120 is 21555222.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463417 + ... + 463896.

Almost surely, 2^222555120 is an apocalyptic number.

222555120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222555120 is an abundant number, since it is smaller than the sum of its proper divisors (467366496).

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

222555120 is a wasteful number, since it uses less digits than its factorization.

222555120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927329 (or 927323 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 222555120 is about 14918.2814023600. The cubic root of 222555120 is about 606.0091710754.

The spelling of 222555120 in words is "two hundred twenty-two million, five hundred fifty-five thousand, one hundred twenty".