1229412224 has 64 divisors (see below), whose sum is σ = 2520277200. Its totient is φ = 597012480.

The previous prime is 1229412193. The next prime is 1229412263. The reversal of 1229412224 is 4222149221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1229412224² = 3022908833041252352, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1663247 + ... + 1663985.

Almost surely, 2^1229412224 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 1229412224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260138600).

1229412224 is an abundant number, since it is smaller than the sum of its proper divisors (1290864976).

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

1229412224 is an equidigital number, since it uses as much as digits as its factorization.

1229412224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1099 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 1229412224 is about 35062.9751162105. The cubic root of 1229412224 is about 1071.2705738086.

The spelling of 1229412224 in words is "one billion, two hundred twenty-nine million, four hundred twelve thousand, two hundred twenty-four".