1225331224 has 16 divisors (see below), whose sum is σ = 2474226720. Its totient is φ = 565537440.

The previous prime is 1225331209. The next prime is 1225331231. The reversal of 1225331224 is 4221335221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5890912 + ... + 5891119.

It is an arithmetic number, because the mean of its divisors is an integer number (154639170).

Almost surely, 2^1225331224 is an apocalyptic number.

It is an amenable number.

1225331224 is an abundant number, since it is smaller than the sum of its proper divisors (1248895496).

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

1225331224 is a wasteful number, since it uses less digits than its factorization.

1225331224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11782050 (or 11782046 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 1225331224 is about 35004.7314516195. The cubic root of 1225331224 is about 1070.0839087544.

Adding to 1225331224 its reverse (4221335221), we get a palindrome (5446666445).

The spelling of 1225331224 in words is "one billion, two hundred twenty-five million, three hundred thirty-one thousand, two hundred twenty-four".