222301220 has 12 divisors (see below), whose sum is σ = 466832604. Its totient is φ = 88920480.

The previous prime is 222301207. The next prime is 222301223. The reversal of 222301220 is 22103222.

It can be written as a sum of positive squares in 2 ways, for example, as 117115684 + 105185536 = 10822^2 + 10256^2 .

It is a super-3 number, since 3×222301220³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222301195 and 222301204.

It is not an unprimeable number, because it can be changed into a prime (222301223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5557511 + ... + 5557550.

It is an arithmetic number, because the mean of its divisors is an integer number (38902717).

Almost surely, 2^222301220 is an apocalyptic number.

222301220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222301220 is an abundant number, since it is smaller than the sum of its proper divisors (244531384).

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

222301220 is a wasteful number, since it uses less digits than its factorization.

222301220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11115070 (or 11115068 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222301220 is about 14909.7692805757. The cubic root of 222301220 is about 605.7786300184.

Adding to 222301220 its reverse (22103222), we get a palindrome (244404442).

The spelling of 222301220 in words is "two hundred twenty-two million, three hundred one thousand, two hundred twenty".