222266220 has 48 divisors (see below), whose sum is σ = 678924288. Its totient is φ = 53882560.

The previous prime is 222266203. The next prime is 222266251. The reversal of 222266220 is 22662222.

222266220 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

222266220 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167724 + ... + 169043.

It is an arithmetic number, because the mean of its divisors is an integer number (14144256).

Almost surely, 2^222266220 is an apocalyptic number.

222266220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222266220 is an abundant number, since it is smaller than the sum of its proper divisors (456658068).

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

222266220 is a wasteful number, since it uses less digits than its factorization.

222266220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336790 (or 336788 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 222266220 is about 14908.5955072904. The cubic root of 222266220 is about 605.7468362735.

It can be divided in two parts, 2 and 22266220, that added together give a palindrome (22266222).

The spelling of 222266220 in words is "two hundred twenty-two million, two hundred sixty-six thousand, two hundred twenty".