1225224132 has 96 divisors (see below), whose sum is σ = 3259267200. Its totient is φ = 354816000.

The previous prime is 1225224131. The next prime is 1225224137. The reversal of 1225224132 is 2314225221.

It is not an unprimeable number, because it can be changed into a prime (1225224131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385044 + ... + 388212.

It is an arithmetic number, because the mean of its divisors is an integer number (33950700).

Almost surely, 2^1225224132 is an apocalyptic number.

1225224132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225224132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629633600).

1225224132 is an abundant number, since it is smaller than the sum of its proper divisors (2034043068).

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

1225224132 is a wasteful number, since it uses less digits than its factorization.

1225224132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317 (or 3315 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 1225224132 is about 35003.2017392695. The cubic root of 1225224132 is about 1070.0527333023.

Adding to 1225224132 its reverse (2314225221), we get a palindrome (3539449353).

The spelling of 1225224132 in words is "one billion, two hundred twenty-five million, two hundred twenty-four thousand, one hundred thirty-two".