1224521112 has 16 divisors (see below), whose sum is σ = 3061302840. Its totient is φ = 408173696.

The previous prime is 1224521099. The next prime is 1224521119. The reversal of 1224521112 is 2111254221.

1224521112 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224521119) 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, 25510833 + ... + 25510880.

Almost surely, 2^1224521112 is an apocalyptic number.

1224521112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224521112 is an abundant number, since it is smaller than the sum of its proper divisors (1836781728).

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

1224521112 is a wasteful number, since it uses less digits than its factorization.

1224521112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51021722 (or 51021718 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 1224521112 is about 34993.1580741150. The cubic root of 1224521112 is about 1069.8480326874.

Adding to 1224521112 its reverse (2111254221), we get a palindrome (3335775333).

The spelling of 1224521112 in words is "one billion, two hundred twenty-four million, five hundred twenty-one thousand, one hundred twelve".