222505700 has 18 divisors (see below), whose sum is σ = 482837586. Its totient is φ = 89002240.

The previous prime is 222505669. The next prime is 222505711. The reversal of 222505700 is 7505222.

It can be written as a sum of positive squares in 3 ways, for example, as 59228416 + 163277284 = 7696^2 + 12778^2 .

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 in 5 ways as a sum of consecutive naturals, for example, 1112429 + ... + 1112628.

Almost surely, 2^222505700 is an apocalyptic number.

222505700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222505700 is an abundant number, since it is smaller than the sum of its proper divisors (260331886).

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

222505700 is a wasteful number, since it uses less digits than its factorization.

222505700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225071 (or 2225064 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 222505700 is about 14916.6249533867. The cubic root of 222505700 is about 605.9643114914.

The spelling of 222505700 in words is "two hundred twenty-two million, five hundred five thousand, seven hundred".