1220115224 has 24 divisors (see below), whose sum is σ = 2391514860. Its totient is φ = 583531344.

The previous prime is 1220115223. The next prime is 1220115251. The reversal of 1220115224 is 4225110221.

It is a junction number, because it is equal to n+sod(n) for n = 1220115196 and 1220115205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220115223) 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, 139922 + ... + 148385.

Almost surely, 2^1220115224 is an apocalyptic number.

It is an amenable number.

1220115224 is a deficient number, since it is larger than the sum of its proper divisors (1171399636).

1220115224 is a wasteful number, since it uses less digits than its factorization.

1220115224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288359 (or 288332 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1220115224 is about 34930.1477809642. The cubic root of 1220115224 is about 1068.5633685078.

Adding to 1220115224 its reverse (4225110221), we get a palindrome (5445225445).

The spelling of 1220115224 in words is "one billion, two hundred twenty million, one hundred fifteen thousand, two hundred twenty-four".