222266620 has 24 divisors (see below), whose sum is σ = 467130384. Its totient is φ = 88836096.

The previous prime is 222266581. The next prime is 222266623. The reversal of 222266620 is 26662222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222266623) 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, 26812 + ... + 34108.

It is an arithmetic number, because the mean of its divisors is an integer number (19463766).

Almost surely, 2^222266620 is an apocalyptic number.

222266620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222266620 is an abundant number, since it is smaller than the sum of its proper divisors (244863764).

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

222266620 is a wasteful number, since it uses less digits than its factorization.

222266620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8829 (or 8827 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 222266620 is about 14908.6089223643. The cubic root of 222266620 is about 605.7471996494.

The spelling of 222266620 in words is "two hundred twenty-two million, two hundred sixty-six thousand, six hundred twenty".