222120220 has 48 divisors (see below), whose sum is σ = 533998080. Its totient is φ = 76025664.

The previous prime is 222120211. The next prime is 222120233. The reversal of 222120220 is 22021222.

222120220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222120220.

It is a congruent number.

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, 119337 + ... + 121183.

It is an arithmetic number, because the mean of its divisors is an integer number (11124960).

Almost surely, 2^222120220 is an apocalyptic number.

222120220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120220 is an abundant number, since it is smaller than the sum of its proper divisors (311877860).

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

222120220 is a wasteful number, since it uses less digits than its factorization.

222120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 2720 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222120220 is about 14903.6981987693. The cubic root of 222120220 is about 605.6141749249.

Adding to 222120220 its reverse (22021222), we get a palindrome (244141442).

It can be divided in two parts, 2221202 and 20, that added together give a palindrome (2221222).

The spelling of 222120220 in words is "two hundred twenty-two million, one hundred twenty thousand, two hundred twenty".