222130505 has 4 divisors (see below), whose sum is σ = 266556612. Its totient is φ = 177704400.

The previous prime is 222130453. The next prime is 222130547. The reversal of 222130505 is 505031222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148376761 + 73753744 = 12181^2 + 8588^2 .

It is not a de Polignac number, because 222130505 - 2¹² = 222126409 is a prime.

It is a super-2 number, since 2×222130505² = 98683922503110050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22213046 + ... + 22213055.

It is an arithmetic number, because the mean of its divisors is an integer number (66639153).

Almost surely, 2^222130505 is an apocalyptic number.

It is an amenable number.

222130505 is a deficient number, since it is larger than the sum of its proper divisors (44426107).

222130505 is an equidigital number, since it uses as much as digits as its factorization.

222130505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44426106.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 222130505 is about 14904.0432433618. The cubic root of 222130505 is about 605.6235221839.

Adding to 222130505 its reverse (505031222), we get a palindrome (727161727).

The spelling of 222130505 in words is "two hundred twenty-two million, one hundred thirty thousand, five hundred five".