1225303112 has 48 divisors (see below), whose sum is σ = 2545428480. Its totient is φ = 552515040.

The previous prime is 1225303087. The next prime is 1225303229. The reversal of 1225303112 is 2113035221.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117953 + ... + 127919.

It is an arithmetic number, because the mean of its divisors is an integer number (53029760).

Almost surely, 2^1225303112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225303112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1272714240).

1225303112 is an abundant number, since it is smaller than the sum of its proper divisors (1320125368).

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

1225303112 is a wasteful number, since it uses less digits than its factorization.

1225303112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122 (or 10107 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1225303112 is about 35004.3299035991. The cubic root of 1225303112 is about 1070.0757252722.

Adding to 1225303112 its reverse (2113035221), we get a palindrome (3338338333).

The spelling of 1225303112 in words is "one billion, two hundred twenty-five million, three hundred three thousand, one hundred twelve".