1220222353 has 6 divisors (see below), whose sum is σ = 1419442386. Its totient is φ = 1045904832.

The previous prime is 1220222347. The next prime is 1220222359. The reversal of 1220222353 is 3532220221.

It is an interprime number because it is at equal distance from previous prime (1220222347) and next prime (1220222359).

It can be written as a sum of positive squares in only one way, i.e., 1124730369 + 95491984 = 33537^2 + 9772^2 .

It is not a de Polignac number, because 1220222353 - 2²¹ = 1218125201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220222359) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12451200 + ... + 12451297.

It is an arithmetic number, because the mean of its divisors is an integer number (236573731).

Almost surely, 2^1220222353 is an apocalyptic number.

It is an amenable number.

1220222353 is a deficient number, since it is larger than the sum of its proper divisors (199220033).

1220222353 is an equidigital number, since it uses as much as digits as its factorization.

1220222353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24902511 (or 24902504 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1220222353 is about 34931.6812220655. The cubic root of 1220222353 is about 1068.5946417222.

Adding to 1220222353 its reverse (3532220221), we get a palindrome (4752442574).

The spelling of 1220222353 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, three hundred fifty-three".