5126221213 has 2 divisors, whose sum is σ = 5126221214. Its totient is φ = 5126221212.

The previous prime is 5126221127. The next prime is 5126221231. The reversal of 5126221213 is 3121226215.

Together with next prime (5126221231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5122694329 + 3526884 = 71573^2 + 1878^2 .

It is a cyclic number.

It is not a de Polignac number, because 5126221213 - 2²⁹ = 4589350301 is a prime.

It is a super-2 number, since 2×5126221213² = 52556287849222382738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5126221013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2563110606 + 2563110607.

It is an arithmetic number, because the mean of its divisors is an integer number (2563110607).

Almost surely, 2^5126221213 is an apocalyptic number.

It is an amenable number.

5126221213 is a deficient number, since it is larger than the sum of its proper divisors (1).

5126221213 is an equidigital number, since it uses as much as digits as its factorization.

5126221213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 5126221213 is about 71597.6341299068. The cubic root of 5126221213 is about 1724.2455526561.

Adding to 5126221213 its reverse (3121226215), we get a palindrome (8247447428).

The spelling of 5126221213 in words is "five billion, one hundred twenty-six million, two hundred twenty-one thousand, two hundred thirteen".