1212224113 has 2 divisors, whose sum is σ = 1212224114. Its totient is φ = 1212224112.

The previous prime is 1212224107. The next prime is 1212224129. The reversal of 1212224113 is 3114222121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1160628624 + 51595489 = 34068^2 + 7183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212224113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212224183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606112056 + 606112057.

It is an arithmetic number, because the mean of its divisors is an integer number (606112057).

Almost surely, 2^1212224113 is an apocalyptic number.

It is an amenable number.

1212224113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212224113 is an equidigital number, since it uses as much as digits as its factorization.

1212224113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 1212224113 is about 34817.0089611385. The cubic root of 1212224113 is about 1066.2547351550.

Adding to 1212224113 its reverse (3114222121), we get a palindrome (4326446234).

The spelling of 1212224113 in words is "one billion, two hundred twelve million, two hundred twenty-four thousand, one hundred thirteen".