1225002224 has 40 divisors (see below), whose sum is σ = 2461509120. Its totient is φ = 589881600.

The previous prime is 1225002221. The next prime is 1225002301. The reversal of 1225002224 is 4222005221.

It is a junction number, because it is equal to n+sod(n) for n = 1225002196 and 1225002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225002221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192209 + ... + 198479.

It is an arithmetic number, because the mean of its divisors is an integer number (61537728).

Almost surely, 2^1225002224 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 1225002224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230754560).

1225002224 is an abundant number, since it is smaller than the sum of its proper divisors (1236506896).

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

1225002224 is a wasteful number, since it uses less digits than its factorization.

1225002224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6729 (or 6723 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1225002224 is about 35000.0317714142. The cubic root of 1225002224 is about 1069.9881280891.

Adding to 1225002224 its reverse (4222005221), we get a palindrome (5447007445).

The spelling of 1225002224 in words is "one billion, two hundred twenty-five million, two thousand, two hundred twenty-four".