1213130224 has 10 divisors (see below), whose sum is σ = 2350439840. Its totient is φ = 606565104.

The previous prime is 1213130213. The next prime is 1213130227. The reversal of 1213130224 is 4220313121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213130227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37910304 + ... + 37910335.

It is an arithmetic number, because the mean of its divisors is an integer number (235043984).

Almost surely, 2^1213130224 is an apocalyptic number.

It is an amenable number.

1213130224 is a deficient number, since it is larger than the sum of its proper divisors (1137309616).

1213130224 is an equidigital number, since it uses as much as digits as its factorization.

1213130224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75820647 (or 75820641 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1213130224 is about 34830.0190065983. The cubic root of 1213130224 is about 1066.5203363503.

Adding to 1213130224 its reverse (4220313121), we get a palindrome (5433443345).

The spelling of 1213130224 in words is "one billion, two hundred thirteen million, one hundred thirty thousand, two hundred twenty-four".